该页无缩略图
LIST 6952 单位 (Unit)：㎜
编码 等级 切削锥部（P） 螺纹尺寸 全长 螺纹长度 圆弧刃数 柄径 规格 库存
Code No. TAP Limit TCL (P) Thread Size L1 THL Radial DCONMS Type Stock
1.4M0.3 4 P M1.4 × 0.3 34 7 4 3.0 1 ●
1.7M0.35 4 P M1.7 × 0.35 36 8 4 3.0 1 ●
20.4 4 P M2 × 0.4 40 9 4 3.0 1 ● 2M0.4 B
2.3M0.4 4 P M2.3 × 0.4 42 9 4 3.0 1 ● 2.3M0.4 B 2
2.5M0.45 4 P M2.5 × 0.45 44 10 4 3.0 1 ● 2.5M0.45 B 2
2.6M0.45 4 P M2.6 × 0.45 44 10 4 3.0 1 ● 2.6M0.45 B 2
3M0.5 5 P M3 × 0.5 46 11 4 4.0 1 ● 3M0.5 B 2
3.5M0.6 5 P M3.5 × 0.6 48 11 4 4.0 1 ● 3.5M0.6 B 2
4M0.7 6 P M4 × 0.7 52 12 4 5.0 1 ● 4M0.7 B 2
5M0.8 6 P M5 × 0.8 60 13 4 5.5 1 ● 5M0.8 B 2
6M1 7 P M6 × 1 62 14 4 6.0 3 ● 6M1 B 4
・倒角B形=2P、P形=4P Lc:B=2P/P=4P
LIST 6950 单位 (Unit)：㎜
编码 等级 切削锥部（P） 螺纹尺寸 全长 螺纹长度 圆弧刃数 柄径 规格 库存
Code No. TAP Limit TCL (P) Thread Size L1 THL Radial DCONMS Type Stock
1.4M0.3 4 P M1.4 × 0.3 34 11 4 3.0 1 ●
1.7M0.35 4 P M1.7 × 0.35 36 13 4 3.0 1 ●
2M0.4 4 P M2 × 0.4 40 15 4 3.0 1 ● 2M0.4 B
2.3M0.4 4 P M2.3 × 0.4 42 15 4 3.0 1 ● 2.3M0.4 B 2
2.5M0.45 4 P M2.5 × 0.45 44 16 4 3.0 1 ● 2.5M0.45 B 2
2.6M0.45 4 P M2.6 × 0.45 44 16 4 3.0 1 ● 2.6M0.45 B 2
3M0.5 5 P M3 × 0.5 46 18 4 4.0 1 ● 3M0.5 B 2
3.5M0.6 5 P M3.5 × 0.6 48 18 4 4.0 1 ● 3.5M0.6 B 2
4M0.7 6 P M4 × 0.7 52 20 4 5.0 1 ● 4M0.7 B 2
4M0.5 6 P M4 × 0.5 52 15 4 5.0 1 ● 4M0.5 B 2
5M0.8 6 P M5 × 0.8 60 22 4 5.5 1 ● 5M0.8 B 2
5M0.5 6 P M5 × 0.5 52 15 4 5.5 1 ● 5M0.5 B 2
6M1 7 P M6 × 1 62 24 4 6.0 3 ● 6M1 B 4
6M0.75 6 P M6 × 0.75 62 20 4 6.0 3 ● 6M0.75 B 4
6M0.5 6 P M6 × 0.5 55 15 4 6.0 3 ● 6M0.5 B 4
8M1.25 7 P M8 × 1.25 70 30 4 6.2 5 ● 8M1.25 B
8M1 7 P M8 × 1 70 30 4 6.2 5 ● 8M1 B
10M1.5 7 P M10 × 1.5 75 32 4 7.0 5 ● 10M1.5 B
10M1.25 7 P M10 × 1.25 75 32 4 7.0 5 ● 10M1.25 B
10M1 7 P M10 × 1 70 30 4 7.0 5 ● 10M1 B
・倒角B形=2P、P形=4P Lc:B=2P/P=4P
滚压丝锥
TCL
DCONMS
L1
DRVL
DRVS
THL
规格1 2
3 4
滚压丝锥
TCL
DCONMS
L1
DRVL
DRVS
THL
规格1 2
3 4
5
TAFLET-S
TAFLET-L
适用于铝等有色金属的挤压螺纹加工。
适用于铝等有色金属的挤压螺纹加工。
挤压丝锥 -S
挤压丝锥 -L
TFS
TFL
TFS
TFL
订货方式
订货方式
编码 × 等级 × 切削锥部
编码 × 等级 × 切削锥部
工具材料
工具材料
HSS-E
HSS-E
This forming tap is suited to tap Aluminum, Magnesium, and nonferrous materials.
This forming tap is suited to tap Aluminum, Magnesium, and nonferrous materials.
49
LIST 6970 单位 (Unit)：㎜
编码 等级 切削锥部（P） 全长 螺纹尺寸 螺纹长度 圆弧刃数 柄径 规格 库存
Code No. TAP Limit TCL (P) L1 Thread Size THL Radial DCONMS Type Stock
3M0.5
5 B
70
3M0.5 100 M3 × 0.5 18 4 4.0 1 ●
3M0.5 120
4M0.7
6 B
70
4M0.7 100 M4 × 0.7 20 4 5.0 1 ●
4M0.7 120
5M0.8
6 B
100
5M0.8 120 M5 × 0.8 22 4 5.5 1 ●
5M0.8 150
6M1
7 B
100
6M1 120 M6 × 1 24 4 6.0 2 ●
6M1 150
8M1.25
7 B
100
8M1.25 120 M8 × 1.25 30 4 6.2 3 ●
8M1.25 150
10M1.5
7 B
100
10M1.5 120 M10 × 1.5 32 4 7.0 3 ●
10M1.5 150
10M1.25
7 B
100
10M1.25 120 M10 × 1.25 32 4 7.0 3 ●
10M1.25 150
・倒角B形=2P Lc:B=2P
LIST 6954 单位 (Unit)：㎜
编码 等级 切削锥部（P） 螺纹尺寸 全长 螺纹长度 圆弧刃数 柄径 规格 库存
Code No. TAP Limit TCL (P) Thread Size L1 THL Radial DCONMS Type Stock
1.4M0.3 4 P M1.4 × 0.3 34 7.0 4 3.0 1 ●
1.6M0.35 4 P M1.6 × 0.35 36 8.0 4 3.0 1 ●
1.7M0.35 4 P M1.7 × 0.35 36 8.0 4 3.0 1 ●
2M0.4 4 P M2 × 0.4 40 9.0 4 3.0 1 ● 2M0.4 B
2.3M0.4 4 P M2.3 × 0.4 42 9.0 4 3.0 1 ● 2.3M0.4 B 2
2.5M0.45 4 P M2.5 × 0.45 44 9.0 4 3.0 1 ● 2.5M0.45 B 2
2.6M0.45 4 P M2.6 × 0.45 44 10.0 4 3.0 1 ● 2.6M0.45 B 2
3M0.5 5 P M3 × 0.5 46 12.5 4 4.0 1 ● 3M0.5 B 2
3.5M0.6 5 P M3.5 × 0.6 48 12.5 4 4.0 1 ● 3.5M0.6 B 2
4M0.7 6 P M4 × 0.7 52 14.0 4 5.0 1 ● 4M0.7 B 2
5M0.8 6 P M5 × 0.8 60 10.0 4 5.5 3 ● 5M0.8 B 4
6M1 7 P M6 × 1 62 10.0 4 6.0 3 ● 6M1 B 4
8M1.25 7 P M8 × 1.25 70 18.0 6 6.2 5 ● 8M1.25 B
8M1 7 P M8 × 1 70 18.0 6 6.2 5 ● 8M1 B
10M1.5 7 P M10 × 1.5 75 19.0 8 7.0 5 ● 10M1.5 B
10M1.25 7 P M10 × 1.25 75 19.0 8 7.0 5 ● 10M1.25 B
10M1 7 P M10 × 1 70 19.0 8 7.0 5 ● 10M1 B
・倒角B形=2P、P形=4P Lc:B=2P/P=4P
滚压丝锥
TCL
DCONMS
L1
DRVL
DRVS
THL
规格1 2
3
滚压丝锥
TCL
DCONMS
L1
DRVL
DRVS
THL
规格1 2
3 4
5
TAFLET-L Long Shank
TAFLET for Steel
当标准尺寸丝锥长度不够时，请使用本丝锥。
适用于软钢、不锈钢等硬度 20HRC 以下的挤压螺纹加工。
挤压丝锥 -L 长柄
钢用 挤压丝锥
TFLL
TFST
TFLL
TFST
订货方式
订货方式
编码 × 等级 × 切削锥部 × 全长
编码 × 等级 × 切削锥部
工具材料
工具材料
HSS-E
HSS-E
This tap is used when a standard TAFLET-L is too short.
This forming tap is suited to tap Mild Steel, Alloy Steel, and Stainless Steel.
50
LIST 6974 单位 (Unit)：㎜
编码 等级 切削锥部（P） 全长 螺纹尺寸 螺纹长度 圆弧刃数 柄径 规格 库存
Code No. TAP Limit TCL (P) L1 Thread Size THL Radial DCONMS Type Stock
3M0.5
5 B
70
3M0.5 100 M3 × 0.5 18 4 4.0 1 ●
3M0.5 120
4M0.7
6 B
70
4M0.7 100 M4 × 0.7 20 4 5.0 1 ●
4M0.7 120
5M0.8
6 B
100
5M0.8 120 M5 × 0.8 22 4 5.5 1 ●
5M0.8 150
6M1
7 B
100
6M1 120 M6 × 1 24 4 6.0 2 ●
6M1 150
8M1.25
7 B
100
8M1.25 120 M8 × 1.25 30 6 6.2 3 ●
8M1.25 150
10M1.5
7 B
100
10M1.5 120 M10 × 1.5 32 8 7.0 3 ●
10M1.5 150
10M1.25
7 B
100
10M1.25 120 M10 × 1.25 32 8 7.0 3 ●
10M1.25 150
・倒角B形=2P Lc:B=2P
滚压丝锥
TCL
DCONMS
L1
DRVL
DRVS
THL
规格1 2
3
TAFLET Long Shank for Steel
当标准尺寸丝锥长度不够时，请使用本丝锥。
钢用长柄 挤压丝锥
TFSTL
订货方式 TFSTL 编码 × 等级 × 切削锥部 × 全长
工具材料
HSS-E
This tap is used when a standard TAFLET for Steel is too short.
51
柄径
3.0
4.0
5.0
5.5
6.0
6.2
7.0
8.0
8.5
10.0
10.5
12.5
13.0
Ds
钻柄四棱部分
2.5
3.2
4.0
4.5
4.5
5.0
5.5
6.0
6.5
8.0
8.0
10.0
10.0
K
5.0
6.0
7.0
7.0
7.0
8.0
8.0
9.0
9.0
11.0
11.0
13.0
13.0
Lk
Square portion size of shank
钻柄四棱部分尺寸
柄径
14.0
15.0
17.0
18.0
19.0
20.0
21.0
23.0
24.0
25.0
26.0
28.0
Ds
钻柄四棱部分
11.0
12.0
13.0
14.0
15.0
15.0
17.0
17.0
19.0
19.0
21.0
21.0
K
14.0
15.0
16.0
17.0
18.0
18.0
20.0
20.0
22.0
22.0
24.0
24.0
Lk
Length of external center
凸顶尖长度
尺寸
M1.4
M1.6
M1.7
M2
M2.2
M2.3
M2.5
M2.6
M3
Size
长度
(0.7)
(0.8)
(0.8)
(1.0)
(1.1)
(1.2)
(1.2)
(1.3)
(1.5)
Length
尺寸
M3.5
M4
M4.5
M5
M5.5
M6
M8
M10
Ｍ12
Size
长度
(1.7)
(2.0)
(2.2)
(2.5)
(3.0)
(3.0)
(4.0)
(5.0)
(6.0)
Length
※ 凸顶尖长度为参考值。
The lengths above are for reference only.
52
注） 1. 表中的数值为一般标准值，请根据使用条件变更切削条件。
2. 表中的数值以螺丝深度2Dc（螺纹直径的2倍）为基准。
3. 不锈钢加工时，推荐使用非水溶性切削油剂。
4. ZTF在加工不锈钢时，推存使用高润滑水溶性油剂或油性切削油剂。
1. These are general Cutting condition, and may be altered by your condition.
2. These condition are for thread depth of 2 × Dc.
3. Recommend non water soluble cutting fluid for Stainless Steel.
4. Recommend highly lubricated water-soluble oil or oily when ZTF used to
cutting for Stainless Steel.
Cutting Condition Recommended Cutting Speed & Cutting fluids
基准切削速度和切削油剂
注） 1. 表中的数值为一般标准值，请根据使用条件变更切削条件。
2. 表中的数值以螺丝深度2Dc（螺纹直径的2倍）为基准。
3. 不锈钢加工时，推荐使用非水溶性切削油剂。
4. ZTF在加工不锈钢时，推存使用高润滑水溶性油剂或油性切削油剂。
1. These are general Cutting condition, and may be altered by your condition.
2. These condition are for thread depth of 2 × Dc.
3. Recommend non water soluble cutting fluid for Stainless Steel.
4. Recommend highly lubricated water-soluble oil or oily when ZTF used to
cutting for Stainless Steel.
Cutting Condition Recommended Cutting Speed & Cutting fluids
基准切削速度和切削油剂
切削速度（m/min） Recommended Cutting Speed
系列
Series
被削材
Work materials
一般结构用钢
SS
Structural
Steel
低碳钢
S15C
Low Carbon
Steel
中碳钢
S40C
Medium
Carbon
Steel
高碳钢
S50C
High Carbon
Steel
合金钢
SCM, SCr
Alloy Steel
高硬度钢
Hardened
Steel
不锈钢
SUS
Stainless
Steel
铸铁
FC
Cast Iron
球墨铸铁
FCD
Ductile
Cast Iron
铝合金
AC, ADC
Aluminum
Alloy
钛合金
Ti
Titanium
Alloy
商品编码
Code ～200HB ～200HB ～200HB ～200HB ～200HB 20～30HRC 30～40HRC
SG
系列
SG Series
SGSP/SGSPL 15～30 15～30 10～50 10～50 15～50 8～15 5～15 5～10 － 10～30 15～50 －
SGSP-1.5P 10～20 15～30 10～30 10～30 10～30 8～15 5～15 5～10 － 10～30 15～50 －
SGSP-T － － － 5～15 5～15 － － － － － － 5～7
SGPO/SGPOL 15～50 15～30 15～50 10～50 15～50 10～30 8～20 5～15 15～50 15～30 15～50 －
Hyper Z
系列
Hyper Z
Series
ZSP/ZSPL 5～20 5～20 5～20 5～20 5～20 5～10 － － － 5～20 10～25 －
ZSP-SUS 5～10 5～10 5～10 5～10 － － － 5～10 － － 10～25 －
ZSP-LS － － － 5～15 － － 3～15 － 3～15 3～15 － －
ZSP-T/
ZSP-T-HL － － － － － － － － 3～15 3～15 10～20 3～5
ZPO/ZPOL 8～20 10～25 6～25 6～25 6～25 5～10 － － 8～20 6～25 10～30 －
ZPO-SUS 5～15 5～15 5～15 5～15 － － － 5～10 － － 10～30 －
ST
系列
ST Series
STSP 5～15 5～15 5～15 5～15 5～15 5～8 － － － 5～15 10～20 －
STPO 6～20 6～20 6～20 6～20 6～20 5～10 － － － 6～20 10～20 －
N
系列
N Series
NSP/NSPL 5～10 5～15 5～10 5～10 5～10 5～8 － － － － 10～20 －
NPO/NPOL 6～12 10～18 6～12 6～12 6～12 5～10 － － － － 10～20 －
EXCEL
系列
EXCEL Series
ESP/EHT － － － － － － － － 12～30 12～20 15～50 －
挤压丝锥
系列
TAFLET Series
ZTF 10～50 10～50 10～50 10～40 10～30 5～20 5～20 3～15 - - 10～50 －
TFS/TFL
TFLL
TFST/TFSTL
8～15 10～20 8～15 5～10 8～15 5～10 － 5～10 － － 15～30 －
推荐切削油
Cutting Fluids
极压活性型非水溶性
Sulfochlorinated Oil
水溶性
Water soluble Oil
水溶性
Water soluble Oil
极压活性型
非水溶性
Extreme
pressure
property nonwater soluble
水溶性
Water soluble
53
精度等级
NACHI Tap Limit System
■NACHI GT级表示切削式丝锥的有效直径的精度等级。
■采用阶段法是对标准有效直径设定精度等级的公差范围。
■为保证EXCEL系列的标准库存品可获得前JIS 2级或前JIS 2级以上的内螺纹精度，设定了NACHI GT级。
■可根据您的不同需求，制作标准库存品以外精度等级的丝锥。
■NACHI GT Limit System is applied to Cutting Taps. (EXCEL series)
■NACHI GT Limit System uses the step method to basic pitch diameter.
■Stocked Taps (EXCEL series) satisfy previous JIS 2 grade precision.
■Tap limit does not guarantee thread limit for the internal thread after tapping.
■NACHI P Limit System is applied to Cutting Taps.(SG series, Hyper Z series, ST series, N series)
■NACHI P Limit System uses the step method to basic pitch diameter.
■NACHI REG precision expresses REG:REGULAR as P grade satisfies internal thread precision of previous JIS 2 grade or over.
(“＋1”, “＋2” expresses over size.)
■Tap limit does not guarantee thread limit for the internal thread after tapping.
■NACHI P级表示切削式丝锥的有效直径的精度等级。
■采用阶段法是对标准有效直径设定精度等级的公差范围。
■NACHI REG精度以可获得前JIS 2级或前JIS 2级以上的内螺纹精度的P级为REG（REGULAR的缩写）。
（+1、+2表示超规格尺寸。）
■可根据您的不同需求，制作标准库存品以外精度等级的丝锥。
NACHI GT Limits (EXCEL series)
EXCEL系列的精度等级 GT级
Limits of TAFLET
TAFLET系列的精度
■无沟槽挤压丝锥系列的有效直径的精度等级用等级编码表示。
■采用阶段法按13μm的公差幅度对标准有效直径设定精度等级。
■挤压丝锥系列的标准库存品可满足前JIS 2级内螺纹精度的要求。
■挤压内螺纹时，依被切削材质及切削条件不同，有时需要改变
丝锥的精度等级。
■可根据您的不同需求，制作标准库存品以外精度等级的丝锥。
■Tap limit of TAFLET is indicated by class number.
■The limits are established by increments of 13μm.
■Stocked sizes of TAFLET satisfy previous JIS 2 grade precision.
■You may change Tap limit to satisfy the precision because minor diameter is
changed by tapping condition or work material.
■Tap limit does not guarantee thread limit for the internal thread after tapping.
NACHI P Limits (SG series, Hyper Z series, ST series, N series)
SG系列、Hyper Z系列、ST系列、N系列的精度等级 P级
20
100
160
140
120
80
60
40
240
220
200
180
(µm)
NACHI
P级
Pitch Dia.
P1
P2
P3
P4 5H
6H
7H
P5
P6
Basic pitch dia.
30
20
10
70
60
50
40
110
100
90
80
120
130
140
(µm)
NACHI
P级
例）M3×0.5
Pitch Dia.
P1
P2
P3
P4
5H
6H
7H
P5
P6
Basic pitch dia.
NACHI P Limits
1級
2級
3級
1Grade
2Grade
3Grade
Previous JIS
Internal Thread
JIS
Internal Thread
NACHI P Limits
1級
2級
3級
1Grade
2Grade
3Grade
Previous JIS
Internal Thread
JIS
Internal Thread
P≦0.6
齿距0.6mm以上
P≦0.6
齿距0.6mm以上
P≧0.7
P≧0.7 例）M10×1.5
标准有效直径
Basic pitch dia.
Previous JIS Internal Thread
标准有效直径
Basic pitch dia.
GT7
80
100
125
GT6
70
80
90
100
60
50
40
30
20
10
1級
2級
3級
GT5
GT4
GT3
GT2
NACHI GT级
NACHI GT Limit
Ex.
例）M3×0.5 Ex.
例）M10×1.5
GT7
80
140
G 螺旋
丝锥 1級
1
Grade
2級
2
Grade
3級
3
Grade
(µm)
GT7
GT8
GT9
GT10
GT6
GT5
GT4
GT3
GT2
前JIS内螺纹精度Previous JIS Internal Thread
前JIS内螺纹精度
40
70
1級
2級
1
Grade
2 Grade
例）M2×0.4
7
8
9
10
6
89
102
114
127
76
64
51
38
25
13
5
4
3
1
2
标准有效直径
(µm)
13µm
前JIS内螺纹精度 Basic pitch dia. Ex.
4
G 螺旋丝锥TAFLET-L
有效直径容许差
Pitch Dia.
Previous JIS Internal Thread
GT5
G 螺旋
丝锥
G Spiral
Tap
G Spiral
Tap
2
Grade
3
Grade
1 Grade
有效直径容许差
Pitch Dia.
70
80
90
100
60
50
40
30
20
10
(µm)有效直径容许差
Pitch Dia.
NACHI GT级
NACHI GT Limit
210
有效直径容许差有效直径容许差
齿距0.6mm以上
齿距0.6mm以上
前JIS
内螺纹精度
JIS
内螺纹精度
标准有效直径
前JIS
内螺纹精度
JIS
内螺纹精度
标准有效直径
54
精度等级
NACHI Tap Limit System
■NACHI GT级表示切削式丝锥的有效直径的精度等级。
■采用阶段法是对标准有效直径设定精度等级的公差范围。
■为保证EXCEL系列的标准库存品可获得前JIS 2级或前JIS 2级以上的内螺纹精度，设定了NACHI GT级。
■可根据您的不同需求，制作标准库存品以外精度等级的丝锥。
■NACHI GT Limit System is applied to Cutting Taps. (EXCEL series)
■NACHI GT Limit System uses the step method to basic pitch diameter.
■Stocked Taps (EXCEL series) satisfy previous JIS 2 grade precision.
■Tap limit does not guarantee thread limit for the internal thread after tapping.
■NACHI P Limit System is applied to Cutting Taps.(SG series, Hyper Z series, ST series, N series)
■NACHI P Limit System uses the step method to basic pitch diameter.
■NACHI REG precision expresses REG:REGULAR as P grade satisfies internal thread precision of previous JIS 2 grade or over.
(“＋1”, “＋2” expresses over size.)
■Tap limit does not guarantee thread limit for the internal thread after tapping.
■NACHI P级表示切削式丝锥的有效直径的精度等级。
■采用阶段法是对标准有效直径设定精度等级的公差范围。
■NACHI REG精度以可获得前JIS 2级或前JIS 2级以上的内螺纹精度的P级为REG（REGULAR的缩写）。
（+1、+2表示超规格尺寸。）
■可根据您的不同需求，制作标准库存品以外精度等级的丝锥。
NACHI GT Limits (EXCEL series)
EXCEL系列的精度等级 GT级
Limits of TAFLET
TAFLET系列的精度
■无沟槽挤压丝锥系列的有效直径的精度等级用等级编码表示。
■采用阶段法按13μm的公差幅度对标准有效直径设定精度等级。
■挤压丝锥系列的标准库存品可满足前JIS 2级内螺纹精度的要求。
■挤压内螺纹时，依被切削材质及切削条件不同，有时需要改变
丝锥的精度等级。
■可根据您的不同需求，制作标准库存品以外精度等级的丝锥。
■Tap limit of TAFLET is indicated by class number.
■The limits are established by increments of 13μm.
■Stocked sizes of TAFLET satisfy previous JIS 2 grade precision.
■You may change Tap limit to satisfy the precision because minor diameter is
changed by tapping condition or work material.
■Tap limit does not guarantee thread limit for the internal thread after tapping.
NACHI P Limits (SG series, Hyper Z series, ST series, N series)
SG系列、Hyper Z系列、ST系列、N系列的精度等级 P级
20
100
160
140
120
80
60
40
240
220
200
180
(µm)
NACHI
P级
Pitch Dia.
P1
P2
P3
P4 5H
6H
7H
P5
P6
Basic pitch dia.
30
20
10
70
60
50
40
110
100
90
80
120
130
140
(µm)
NACHI
P级
例）M3×0.5
Pitch Dia.
P1
P2
P3
P4
5H
6H
7H
P5
P6
Basic pitch dia.
NACHI P Limits
1級
2級
3級
1Grade
2Grade
3Grade
Previous JIS
Internal Thread
JIS
Internal Thread
NACHI P Limits
1級
2級
3級
1Grade
2Grade
3Grade
Previous JIS
Internal Thread
JIS
Internal Thread
P≦0.6
齿距0.6mm以上
P≦0.6
齿距0.6mm以上
P≧0.7
P≧0.7 例）M10×1.5
标准有效直径
Basic pitch dia.
Previous JIS Internal Thread
标准有效直径
Basic pitch dia.
GT7
80
100
125
GT6
70
80
90
100
60
50
40
30
20
10
1級
2級
3級
GT5
GT4
GT3
GT2
NACHI GT级
NACHI GT Limit
Ex.
例）M3×0.5 Ex.
例）M10×1.5
GT7
80
140
G 螺旋
丝锥 1級
1
Grade
2級
2
Grade
3級
3
Grade
(µm)
GT7
GT8
GT9
GT10
GT6
GT5
GT4
GT3
GT2
前JIS内螺纹精度Previous JIS Internal Thread
前JIS内螺纹精度
40
70
1級
2級
1
Grade
2 Grade
例）M2×0.4
7
8
9
10
6
89
102
114
127
76
64
51
38
25
13
5
4
3
1
2
标准有效直径
(µm)
13µm
前JIS内螺纹精度 Basic pitch dia. Ex.
4
G 螺旋丝锥TAFLET-L
有效直径容许差
Pitch Dia.
Previous JIS Internal Thread
GT5
G 螺旋
丝锥
G Spiral
Tap
G Spiral
Tap
2
Grade
3
Grade
1 Grade
有效直径容许差
Pitch Dia.
70
80
90
100
60
50
40
30
20
10
(µm)有效直径容许差
Pitch Dia.
NACHI GT级
NACHI GT Limit
210
有效直径容许差有效直径容许差
齿距0.6mm以上
齿距0.6mm以上
前JIS
内螺纹精度
JIS
内螺纹精度
标准有效直径
前JIS
内螺纹精度
JIS
内螺纹精度
标准有效直径
精度等级
NACHI Tap Limit System
■NACHI GT级表示切削式丝锥的有效直径的精度等级。
■采用阶段法是对标准有效直径设定精度等级的公差范围。
■为保证EXCEL系列的标准库存品可获得前JIS 2级或前JIS 2级以上的内螺纹精度，设定了NACHI GT级。
■可根据您的不同需求，制作标准库存品以外精度等级的丝锥。
■NACHI GT Limit System is applied to Cutting Taps. (EXCEL series)
■NACHI GT Limit System uses the step method to basic pitch diameter.
■Stocked Taps (EXCEL series) satisfy previous JIS 2 grade precision.
■Tap limit does not guarantee thread limit for the internal thread after tapping.
■NACHI P Limit System is applied to Cutting Taps.(SG series, Hyper Z series, ST series, N series)
■NACHI P Limit System uses the step method to basic pitch diameter.
■NACHI REG precision expresses REG:REGULAR as P grade satisfies internal thread precision of previous JIS 2 grade or over.
(“＋1”, “＋2” expresses over size.)
■Tap limit does not guarantee thread limit for the internal thread after tapping.
■NACHI P级表示切削式丝锥的有效直径的精度等级。
■采用阶段法是对标准有效直径设定精度等级的公差范围。
■NACHI REG精度以可获得前JIS 2级或前JIS 2级以上的内螺纹精度的P级为REG（REGULAR的缩写）。
（+1、+2表示超规格尺寸。）
■可根据您的不同需求，制作标准库存品以外精度等级的丝锥。
NACHI GT Limits (EXCEL series)
EXCEL系列的精度等级 GT级
Limits of TAFLET
TAFLET系列的精度
■无沟槽挤压丝锥系列的有效直径的精度等级用等级编码表示。
■采用阶段法按13μm的公差幅度对标准有效直径设定精度等级。
■挤压丝锥系列的标准库存品可满足前JIS 2级内螺纹精度的要求。
■挤压内螺纹时，依被切削材质及切削条件不同，有时需要改变
丝锥的精度等级。
■可根据您的不同需求，制作标准库存品以外精度等级的丝锥。
■Tap limit of TAFLET is indicated by class number.
■The limits are established by increments of 13μm.
■Stocked sizes of TAFLET satisfy previous JIS 2 grade precision.
■You may change Tap limit to satisfy the precision because minor diameter is
changed by tapping condition or work material.
■Tap limit does not guarantee thread limit for the internal thread after tapping.
NACHI P Limits (SG series, Hyper Z series, ST series, N series)
SG系列、Hyper Z系列、ST系列、N系列的精度等级 P级
20
100
160
140
120
80
60
40
240
220
200
180
(µm)
NACHI
P级
Pitch Dia.
P1
P2
P3
P4 5H
6H
7H
P5
P6
Basic pitch dia.
30
20
10
70
60
50
40
110
100
90
80
120
130
140
(µm)
NACHI
P级
例）M3×0.5
Pitch Dia.
P1
P2
P3
P4
5H
6H
7H
P5
P6
Basic pitch dia.
NACHI P Limits
1級
2級
3級
1Grade
2Grade
3Grade
Previous JIS
Internal Thread
JIS
Internal Thread
NACHI P Limits
1級
2級
3級
1Grade
2Grade
3Grade
Previous JIS
Internal Thread
JIS
Internal Thread
P≦0.6
齿距0.6mm以上
P≦0.6
齿距0.6mm以上
P≧0.7
P≧0.7 例）M10×1.5
标准有效直径
Basic pitch dia.
Previous JIS Internal Thread
标准有效直径
Basic pitch dia.
GT7
80
100
125
GT6
70
80
90
100
60
50
40
30
20
10
1級
2級
3級
GT5
GT4
GT3
GT2
NACHI GT级
NACHI GT Limit
Ex.
例）M3×0.5 Ex.
例）M10×1.5
GT7
80
140
G 螺旋
丝锥 1級
1
Grade
2級
2
Grade
3級
3
Grade
(µm)
GT7
GT8
GT9
GT10
GT6
GT5
GT4
GT3
GT2
前JIS内螺纹精度Previous JIS Internal Thread
前JIS内螺纹精度
40
70
1級
2級
1
Grade
2 Grade
例）M2×0.4
7
8
9
10
6
89
102
114
127
76
64
51
38
25
13
5
4
3
1
2
标准有效直径
(µm)
13µm
前JIS内螺纹精度 Basic pitch dia. Ex.
4
G 螺旋丝锥TAFLET-L
有效直径容许差
Pitch Dia.
Previous JIS Internal Thread
GT5
G 螺旋
丝锥
G Spiral
Tap
G Spiral
Tap
2
Grade
3
Grade
1 Grade
有效直径容许差
Pitch Dia.
70
80
90
100
60
50
40
30
20
10
(µm)有效直径容许差
Pitch Dia.
NACHI GT级
NACHI GT Limit
210
有效直径容许差有效直径容许差
齿距0.6mm以上
齿距0.6mm以上
前JIS
内螺纹精度
JIS
内螺纹精度
标准有效直径
前JIS
内螺纹精度
JIS
内螺纹精度
标准有效直径
55
标准有效直径
2.78
3.70
4.65
5.57
7.46
7.57
9.35
9.46
9.57
11.24
11.35
11.46
11.57
13.13
13.35
15.13
15.35
80％
2.77
3.68
4.63
5.54
7.43
7.54
9.31
9.43
9.54
11.20
11.31
11.43
11.54
13.08
13.31
15.08
15.31
85％
2.76
3.66
4.61
5.51
7.39
7.51
9.27
9.39
9.51
11.15
11.27
11.39
11.51
13.03
13.27
15.03
15.27
90％
2.74
3.64
4.59
5.49
7.36
7.49
9.23
9.36
9.49
11.10
11.23
11.36
11.49
12.97
13.23
14.97
15.23
95％
2.73
3.62
4.57
5.46
7.32
7.46
9.19
9.32
9.46
11.05
11.19
11.32
11.46
12.92
13.19
14.92
15.19
100％
3
4
5
6
8
8
10
10
10
12
12
12
12
14
14
16
16
螺纹尺寸
Thread size
0.5
0.7
0.8
1
1.25
1
1.5
1.25
1
1.75
1.5
1.25
1
2
1.5
2
1.5
螺距
Pitch
R5
R6
R6
R7
R7
R7
R7
R7
R7
R8
R7
R7
R7
R10
R9
R10
R9
推荐R级精度
Recommended R
丝锥
Taps
钻头
Drills
底孔径咬合率
Percentage of thread engagement per diameter of prepared hole
● 内螺纹的挤压成形取决于被削材和切削条件等。上表中的底孔径作为参考。
● 底孔有弯曲、倾斜、中心位移等场合，易发生内螺纹精度不良和工具损伤等情况。请注意底孔的精度。
● The forming of the internal threads varies depending on the work material and tapping conditions. Use the diameter of prepared hole in the above table as a guide.
● If the prepared hole is bent, wavy, or misaligned, the internal threads may be inaccurate or the tool may be damaged. Pay attention to the accuracy of the prepared hole.
20
100
160
140
120
80
60
40
220
200
180
NACHI
R级NACHI R Limits
前JIS
内螺纹精度
1级1Grade
2级2Grade
3级3Grade
Previous JIS
Internal Thread
R7
R8
R9
R10
R6
R5
R4
R3
R1
R2
13µm
JIS
内螺纹精度JIS
Internal Thread
6H
5H
7H
■ NACHI R级表示挤压丝锥的有效直径的精度等级。
■ 采用阶段法是对标准有效直径设定精度等级的公差范围。
■ NACHI REG精度是前JIS2级等同或同等以上内螺纹精度得到的等级，作为REG（REGULAR的缩写）
■ 丝锥精度不能保证内螺纹精度。
■ NACHI R grade indicates the accuracy grade of the effective diameter of the forming tap.
■ For the accuracy grade, the tolerance range is set step by step with respect to the standard effective diameter.
■ NACHI REG precision expresses REG:REGULAR as grade satisfies internal thread precision of previous JIS 2 grade or over.
■ Tap accuracy does not guarantee internal threads accuracy.
NACHI R Limits （ZT series）
ZT系列的精度等级 R级
Recommended Drill Hole Size of ZT
ZT系列的螺纹底孔直径
精度等级
NACHI Tap Limit System Pitch Dia. 有效直径容许差
例）M10×1.5 齿距0.6mm以上
Basic pitch dia.
56
公制航空航天螺纹用
For Metric screw threads helisert
美制航空航天螺纹用
For Unified screw threads helisert
标准有效直径
2.78
3.70
4.65
5.57
7.46
7.57
9.35
9.46
9.57
11.24
11.35
11.46
11.57
13.13
13.35
15.13
15.35
80％
2.77
3.68
4.63
5.54
7.43
7.54
9.31
9.43
9.54
11.20
11.31
11.43
11.54
13.08
13.31
15.08
15.31
85％
2.76
3.66
4.61
5.51
7.39
7.51
9.27
9.39
9.51
11.15
11.27
11.39
11.51
13.03
13.27
15.03
15.27
90％
2.74
3.64
4.59
5.49
7.36
7.49
9.23
9.36
9.49
11.10
11.23
11.36
11.49
12.97
13.23
14.97
15.23
95％
2.73
3.62
4.57
5.46
7.32
7.46
9.19
9.32
9.46
11.05
11.19
11.32
11.46
12.92
13.19
14.92
15.19
100％
3
4
5
6
8
8
10
10
10
12
12
12
12
14
14
16
16
螺纹尺寸
Thread size
0.5
0.7
0.8
1
1.25
1
1.5
1.25
1
1.75
1.5
1.25
1
2
1.5
2
1.5
螺距
Pitch
R5
R6
R6
R7
R7
R7
R7
R7
R7
R8
R7
R7
R7
R10
R9
R10
R9
推荐R级精度
Recommended R
丝锥
Taps
钻头
Drills
底孔径咬合率
Percentage of thread engagement per diameter of prepared hole
● 内螺纹的挤压成形取决于被削材和切削条件等。上表中的底孔径作为参考。
● 底孔有弯曲、倾斜、中心位移等场合，易发生内螺纹精度不良和工具损伤等情况。请注意底孔的精度。
● The forming of the internal threads varies depending on the work material and tapping conditions. Use the diameter of prepared hole in the above table as a guide.
● If the prepared hole is bent, wavy, or misaligned, the internal threads may be inaccurate or the tool may be damaged. Pay attention to the accuracy of the prepared hole.
20
100
160
140
120
80
60
40
220
200
180
NACHI
R级NACHI R Limits
前JIS
内螺纹精度
1级1Grade
2级2Grade
3级3Grade
Previous JIS
Internal Thread
R7
R8
R9
R10
R6
R5
R4
R3
R1
R2
13µm
JIS
内螺纹精度JIS
Internal Thread
6H
5H
7H
■ NACHI R级表示挤压丝锥的有效直径的精度等级。
■ 采用阶段法是对标准有效直径设定精度等级的公差范围。
■ NACHI REG精度是前JIS2级等同或同等以上内螺纹精度得到的等级，作为REG（REGULAR的缩写）
■ 丝锥精度不能保证内螺纹精度。
■ NACHI R grade indicates the accuracy grade of the effective diameter of the forming tap.
■ For the accuracy grade, the tolerance range is set step by step with respect to the standard effective diameter.
■ NACHI REG precision expresses REG:REGULAR as grade satisfies internal thread precision of previous JIS 2 grade or over.
■ Tap accuracy does not guarantee internal threads accuracy.
NACHI R Limits （ZT series）
ZT系列的精度等级 R级
Recommended Drill Hole Size of ZT
ZT系列的螺纹底孔直径
精度等级
NACHI Tap Limit System Pitch Dia. 有效直径容许差
例）M10×1.5 齿距0.6mm以上
Basic pitch dia.
单位 (Unit)：㎜
螺纹直径
Thread Size
等级
Class
大径基准尺寸
Major diameter basic size
有效径
Pitch diameter 小径基准尺寸
Minor diameter
基本尺寸 basic size
Basic Size
上许容差
Upper tolerance
下许容差
Lower tolerance
M2.5×0.45 1b 3.085 2.792 18 6 2.598
M2.6×0.45 1b 3.185 2.892 18 6 2.698
M3×0.5 1b 3.650 3.324 18 6 3.108
M4×0.7 1b 4.909 4.454 18 6 4.151
M5×0.8 1b 6.039 5.519 18 6 5.173
M6×1 1b 7.299 6.649 18 6 6.216
M8×1.25 1b 9.624 8.812 18 6 8.271
M10×1.5 1b 11.948 10.974 22 7 10.324
M10×1.25 1b 11.624 10.812 18 6 10.271
M12×1.75 1b 14.273 13.136 22 7 12.379
M12×1.5 1b 13.948 12.974 21 7 12.324
M12×1.25 1b 13.624 12.812 21 7 12.271
M14×2 1b 16.598 15.299 22 7 14.433
M14×1.5 1b 15.948 14.974 21 7 14.324
M16×2 1b 18.598 17.299 22 7 16.433
M16×1.5 1b 17.948 16.974 21 7 16.324
螺纹直径
Thread Size
等级
Class
大径基准尺寸
Major diameter basic size
有效径
Pitch diameter 小径基准尺寸
Minor diameter basic size 基本尺寸
Basic Size
上许容差
Upper tolerance
下许容差
Lower tolerance
No.4-40UNC 1b 3.670 3.258 18 6 2.981
No.5-40UNC 1b 4.000 3.589 18 6 3.312
No.6-32UNC 1b 4.536 4.021 18 6 3.678
No.6-40UNF 1b 4.330 3.919 18 6 3.642
No.8-32UNC 1b 5.197 4.681 18 6 4.338
No.8-36UNF 1b 5.083 4.625 18 6 4.318
No.10-24UNC 1b 6.201 5.513 18 6 5.055
No.10-32UNF 1b 5.857 5.341 18 6 4.998
No.12-24UNC 1b 6.861 6.173 18 6 5.716
1/4-20UNC 1b 8.000 7.174 22 7 6.626
1/4-28UNF 1b 7.528 6.939 18 6 6.545
5/16-18UNC 1b 9.771 8.854 22 7 8.244
5/16-24UNF 1b 9.313 8.624 18 6 8.167
3/8-16UNC 1b 11.587 10.556 22 7 9.867
3/8-24UNF 1b 10.900 10.212 18 6 9.754
7/16-14UNC 1b 13.469 12.291 22 7 11.506
7/16-20UNF 1b 12.762 11.937 18 6 11.388
1/2-13UNC 1b 15.238 13.968 30 10 13.122
1/2-20UNF 1b 14.350 13.524 18 6 12.976
5/8-11UNC 1b 18.875 17.376 30 10 16.376
5/8-18UNF 1b 17.708 16.791 21 7 16.181
单位 (Unit)：㎜
57
Tap drill hole of TAFLET series
TAFLET系列的螺纹底孔直径
公制粗螺纹
Coarse screw thread
螺纹直径
Thread size
M1.4
M1.7
M2
M2.3
M2.5
M2.6
M3
M3.5
M4
M5
M6
M8
M10
齿距
Pitch
0.30
0.35
0.40
0.40
0.45
0.45
0.50
0.60
0.70
0.80
1.00
1.25
1.50
等级
Class
4
4
4
4
4
4
5
5
6
6
7
7
7
螺纹辅助孔直径
(咬合率)
Tap drill hole (percentage of thread engagement)
70％～100％
1.28～1.23
1.56～1.50
1.84～1.77
2.14～2.07
2.32～2.24
2.42～2.34
2.80～2.72
3.26～3.16
3.72～3.60
4.68～4.55
5.60～5.43
7.50～7.29
9.40～9.15
公制细螺纹
Fine screw thread
螺纹辅助孔直径
(咬合率)
Tap drill hole
(percentage of thread engagement)
70％～100％
3.80～3.72
4.80～4.72
5.70～5.57
5.80～5.72
7.60～7.43
9.50～9.29
9.60～9.43
M4
M5
M6
M6
M8
M10
M10
螺纹直径
Thread size
0.50
0.50
0.75
0.50
1.00
1.25
1.00
齿距
Pitch
6
6
7
7
7
7
7
等级
Class
螺纹底孔直径
Recommended tap drill sizes
For Metric screw thread
切削丝锥的螺纹底孔钻头直径
M1×0.25
M1×0.2
M1.1×0.25
M1.1×0.2
M1.2×0.25
M1.2×0.2
M1.4×0.3
M1.4×0.2
M1.6×0.35
M1.6×0.2
M1.7×0.2
M1.8×0.35
M1.8×0.2
M2×0.4
M2×0.25
M2.2×0.45
M2.2×0.25
M2.5×0.45
M2.5×0.35
M2.6×0.45
M2.6×0.35
M3×0.5
M3×0.35
M3.5×0.6
M3.5×0.35
M4×0.7
M4×0.5
M4.5×0.75
M4.5×0.5
M5×0.8
M5×0.5
M5.5×0.5
M6×1
M6×0.75
M6×0.5
M7×1
M7×0.75
M7×0.5
M8×1.25
M8×1
M8×0.75
M8×0.5
M9×1.25
M9×1
M9×0.75
M10×1.5
M10×1.25
M10×1
M10×0.75
M10×0.5
M11×1.5
M11×1
M11×0.75
M12×1.75
M12×1.5
M12×1.25
M12×1
M12×0.75
＊ M1.7×0.35
＊
＊M2.3×0.4
＊M2.3×0.25
＊
＊
＊
＊
＊
＊
0.75
0.8
0.85
0.9
0.95
1.0
1.1
1.2
1.25
1.4
1.35
1.5
1.45
1.6
1.6
1.75
1.75
1.95
1.9
2.05
2.05
2.15
2.15
2.25
2.5
2.65
2.9
3.15
3.3
3.5
3.8
4.0
4.2
4.5
5.0
5.0
5.3
5.5
6.0
6.3
6.4
6.8
7.0
7.3
7.5
7.8
8.0
8.3
8.5
8.8
9.0
9.3
9.5
9.6
10.0
10.2
10.2
10.5
10.8
11.0
11.3
0.78
0.83
0.88
0.93
0.98
1.03
1.15
1.23
1.3
1.44
1.4
1.54
1.52
1.64
1.65
1.79
1.8
1.99
1.95
2.09
2.1
2.2
2.2
2.32
2.55
2.7
2.95
3.22
3.4
3.55
3.87
4.09
4.3
4.55
5.09
5.1
5.35
5.5
6.1
6.35
6.5
6.9
7.1
7.35
7.55
7.9
8.1
8.35
8.6
8.9
9.1
9.35
9.60
9.65
10.1
10.3
10.3
10.6
10.9
11.1
11.35
0.729
0.783
0.829
0.883
0.929
0.983
1.075
1.183
1.221
1.383
1.321
1.483
1.421
1.583
1.567
1.729
1.713
1.929
1.867
2.029
2.013
2.121
2.113
2.221
2.459
2.621
2.850
3.121
3.242
3.459
3.688
3.959
4.134
4.459
4.959
4.917
5.188
5.459
5.917
6.188
6.459
6.647
6.917
7.188
7.459
7.647
7.917
8.188
8.376
8.647
8.917
9.188
9.459
9.376
9.917
10.188
10.106
10.376
10.647
10.917
11.188
0.799
0.843
0.899
0.943
0.999
1.043
1.160
1.243
1.321
1.443
1.421
1.543
1.521
1.643
1.679
1.799
1.838
1.999
1.979
2.099
2.138
2.221
2.238
2.321
2.599
2.721
3.010
3.221
3.422
3.599
3.878
4.099
4.334
4.599
5.099
5.153
5.378
5.599
6.153
6.378
6.599
6.912
7.153
7.378
7.599
7.912
8.153
8.378
8.676
8.912
9.153
9.378
9.599
9.676
10.153
10.378
10.441
10.676
10.912
11.153
11.378
0.785
0.831
0.885
0.931
0.985
1.031
1.142
1.231
1.301
1.431
1.401
1.531
1.501
1.631
1.657
1.785
1.813
1.985
1.957
2.085
2.113
2.201
2.213
2.301
2.571
2.701
2.975
3.201
3.382
3.571
3.838
4.071
4.294
4.571
5.071
5.107
5.338
5.571
6.107
6.338
6.571
6.859
7.107
7.338
7.571
7.859
8.107
8.338
8.612
8.859
9.107
9.338
9.571
9.612
10.107
10.338
10.371
10.612
10.859
11.107
11.338
0.774
0.821
0.874
0.921
0.974
1.021
1.128
1.221
1.284
1.421
1.384
1.521
1.484
1.621
1.638
1.774
1.793
1.974
1.938
2.074
2.093
2.184
2.193
2.284
2.549
2.684
2.950
3.184
3.354
3.549
3.806
4.049
4.259
4.549
5.049
5.067
5.306
5.549
6.067
6.306
6.549
6.817
7.067
7.306
7.549
7.817
8.067
8.306
8.566
8.817
9.067
9.306
9.549
9.566
10.067
10.306
10.318
10.566
10.817
11.067
11.306
推荐钻头直径
Recommended drill dia.
最大内螺纹内径D1
Maximum internal thread inner dia. D1
最小内螺纹
内径
Minimum internal
thread inner dia.
螺纹直径
Thread size 标准钻头
Standard Drill 6H 高性能钻头
High performance drill 4H 5H
M36×4
M36×3
M36×2
M36×1.5
M38×1.5
M39×4
M39×3
M39×2
M39×1.5
M40×3
M40×2
M40×1.5
M42×4.5
M42×4
M42×3
M42×2
M42×1.5
M45×4.5
M45×4
M45×3
M45×2
M45×1.5
M48×5
M48×4
32.0
33.0
34.0
34.5
36.5
35.0
36.0
37.0
37.5
37.0
38.0
38.5
37.5
38.0
39.0
40.0
40.5
40.5
41.0
42.0
43.0
43.5
43.0
44.0
32.0
33.0
34.0
34.5
36.5
35.0
36.0
37.0
37.5
37.0
38.0
38.5
37.5
38.0
39.0
40.0
－
－
41.0
42.0
43.0
－
43.0
44.0
31.670
32.752
33.835
34.376
36.376
34.670
35.752
36.835
37.376
36.752
37.835
38.376
37.129
37.670
38.752
39.835
40.376
40.129
40.670
41.752
42.835
43.376
42.587
43.670
32.270
33.252
34.210
34.676
36.676
35.270
36.252
37.210
37.676
37.252
38.210
38.676
37.799
38.270
39.252
40.210
40.676
40.799
41.270
42.252
43.210
43.676
43.297
44.270
32.145
33.152
34.135
34.612
36.612
35.145
36.152
37.135
37.612
37.152
38.135
38.612
37.659
38.145
39.152
40.135
40.612
40.659
41.145
42.152
43.135
43.612
43.147
44.145
32.045
33.067
34.071
34.566
36.566
35.045
36.067
37.071
37.566
37.067
38.071
38.566
37.554
38.045
39.067
40.071
40.566
40.554
41.045
42.067
43.071
43.566
43.037
44.045
推荐钻头直径
Recommended drill dia.
最大内螺纹内径D1
Maximum internal thread inner dia. D1
最小内螺纹
内径
Minimum internal
thread inner dia.
螺纹直径
Thread size 标准钻头
Standard Drill 6H 高性能钻头
High performance drill 4H 5H
M48×3
M48×2
M48×1.5
M50×3
M50×2
M50×1.5
M52×5
M52×4
M52×3
M52×2
M52×1.5
M55×4
M55×3
M55×2
M55×1.5
M56×5.5
M56×4
M56×3
M56×2
M56×1.5
M60×5.5
M64×6
M68×6
45.0
46.0
46.5
47.0
48.0
48.5
47.0
48.0
49.0
50.0
50.5
51.0
52.0
53.0
53.5
50.5
52.0
53.0
54.0
54.5
54.5
58.0
62.0
45.0
46.0
－
47.0
48.0
－
47.0
48.0
49.0
50.0
－
51.0
52.0
－
－
－
－
－
－
－
－
－
－
44.752
45.835
46.376
46.752
47.835
48.376
46.587
47.670
48.752
49.835
50.376
50.670
51.752
52.835
53.376
50.046
51.670
52.752
53.835
54.376
54.046
57.505
61.505
45.252
46.210
46.676
47.252
48.210
48.676
47.297
48.270
49.252
50.210
50.676
51.270
52.252
53.210
53.676
50.796
52.270
53.252
54.210
54.676
54.796
58.305
62.305
45.152
46.135
46.612
47.152
48.135
48.612
47.147
48.145
49.152
50.135
50.612
51.145
52.152
53.135
53.612
50.646
52.145
53.152
54.135
54.612
54.646
58.135
62.135
45.067
46.071
46.566
47.067
48.071
48.566
47.037
48.045
49.067
50.071
50.566
51.045
52.067
53.071
53.566
50.521
52.045
53.067
54.071
54.566
54.521
58.005
62.005
推荐钻头直径
Recommended drill dia.
最大内螺纹内径D1
Maximum internal thread inner dia. D 1
最小内螺纹
内径
Minimum internal
thread inner dia.
螺纹直径
Thread size 标准钻头
Standard Drill 6H 高性能钻头
High performance drill 4H 5H
M20×1
M22×2.5
M22×2
M22×1.5
M22×1
M23×2.5
M23×2
M24×3
M24×2
M24×1.5
M24×1
M25×3
M25×2
M25×1.5
M25×1
M26×3
M26×1.5
M27×3
M27×2
M27×1.5
M27×1
M28×3
M28×2
M28×1.5
M28×1
M30×3.5
M30×3
M30×2
M30×1.5
M30×1
M32×2
M32×1.5
M33×3.5
M33×3
M33×2
M33×1.5
M35×1.5
19.0
19.5
20.0
20.5
21.0
20.5
21.0
21.0
22.0
22.5
23.0
22.0
23.0
23.5
24.0
23.0
24.5
24.0
25.0
25.5
26.0
25.0
26.0
26.5
27.0
26.5
27.0
28.0
28.5
29.0
30.0
30.5
29.5
30.0
31.0
31.5
33.5
19.1
19.6
20.0
20.6
21.0
20.5
21.0
21.1
22.0
22.6
23.0
22.0
23.0
23.5
24.0
23.0
24.5
24.1
25.0
25.6
26.0
25.0
26.0
26.5
27.0
26.6
27.0
28.0
28.6
29.0
30.0
30.5
29.5
30.0
31.0
31.5
33.5
18.917
19.294
19.835
20.376
20.917
20.294
20.835
20.752
21.835
22.376
22.917
21.752
22.835
23.376
23.917
22.752
24.376
23.752
24.835
25.376
25.917
24.752
25.835
26.376
26.917
26.211
26.752
27.835
28.376
28.917
29.835
30.376
29.211
29.752
30.835
31.376
33.376
19.153
19.744
20.210
20.676
21.153
20.744
21.210
21.252
22.210
22.676
23.153
22.252
23.210
23.676
24.153
23.252
24.676
24.252
25.210
25.676
26.153
25.252
26.210
26.676
27.153
26.771
27.252
28.210
28.676
29.153
30.210
30.676
29.771
30.252
31.210
31.676
33.676
19.107
19.649
20.135
20.612
21.107
20.649
21.135
21.152
22.135
22.612
23.107
22.152
23.135
23.612
24.107
23.152
24.612
24.152
25.135
25.612
26.107
25.152
26.135
26.612
27.107
26.661
27.152
28.135
28.612
29.107
30.135
30.612
29.661
30.152
31.135
31.612
33.612
19.067
19.574
20.071
20.566
21.067
20.574
21.071
21.067
22.071
22.566
23.067
22.067
23.071
23.566
24.067
23.067
24.566
24.067
25.071
25.566
26.067
25.067
26.071
26.566
27.067
26.566
27.067
28.071
28.566
29.067
30.071
30.566
29.566
30.067
31.071
31.566
33.566
推荐钻头直径
Recommended drill dia.
最大内螺纹内径D1
Maximum internal thread inner dia. D1
最小内螺纹
内径
Minimum internal
thread inner dia.
螺纹直径
Thread size 标准钻头
Standard Drill 6H 高性能钻头
High performance drill 4H 5H
Standard height of percentage of thread engagement: Metric 0.5413P
Pipe 0.6403P P=pitch
Formula of the percentage of thread
engagement per tapped hole size
Percentage of thread
engagement
Standard size of outside diameter Dia. of tap drill hole
(Standard height of percentage of thread engagement)
About the list of tap drill hole
D1: is expressing JIS 6H (class 2) of internal thread inner dia.
For pitch below 0.3, please check JIS 5H (class2) in coarse screw thread;
check JIS 4H/5H (class 1) in fine screw thread.
＊: removed size from JIS
M13×1.75
M14×2
M14×1.5
M14×1.25
M14×1
M15×2
M15×1.5
M15×1
M16×2
M16×1.5
M16×1
M17×1.5
M17×1
M18×2.5
M18×2
M18×1.5
M18×1
M19×2.5
M19×1.5
M19×1
M20×2.5
M20×2
M20×1.5
11.5
11.2
12.0
12.5
12.8
13.0
13.0
13.5
14.0
14.0
14.5
15.0
15.5
16.0
15.5
16.0
16.5
17.0
16.5
17.5
18.0
17.5
18.0
18.5
11.55
11.3
12.1
12.6
12.85
13.1
13.1
13.6
14.1
14.1
14.6
15.1
15.6
16.1
15.6
16.1
16.6
17.1
16.6
17.6
18.1
17.6
18.1
18.6
11.459
11.106
11.835
12.376
12.647
12.917
12.835
13.376
13.917
13.835
14.376
14.917
15.376
15.917
15.294
15.835
16.376
16.917
16.294
17.376
17.917
17.294
17.835
18.376
11.599
11.441
12.210
12.676
12.912
13.153
13.210
13.676
14.153
14.210
14.676
15.153
15.676
16.153
15.744
16.210
16.676
17.153
16.744
17.676
18.153
17.744
18.210
18.676
11.571
11.371
12.135
12.612
12.859
13.107
13.135
13.612
14.107
14.135
14.612
15.107
15.612
16.107
15.649
16.135
16.612
17.107
16.649
17.612
18.107
17.649
18.135
18.612
11.549
11.318
12.071
12.566
12.817
13.067
13.071
13.566
14.067
14.071
14.566
15.067
15.566
16.067
15.574
16.071
16.566
17.067
16.574
17.566
18.067
17.574
18.071
18.566
＊M12×0.5
丝锥螺纹辅助孔直径表
D1：表示JIS 6H（2级）的内螺纹内径。
齿距0.3以下表示粗螺纹的5H（2级）、细螺纹的4H、5H（1级）。
＊：是指从JIS上删除的尺寸。
标准啮合高度： 公 尺 0.5413P
管 用 0.6403P P=齿距
螺纹辅助孔直径的咬合率的计算公式
咬合率（%）＝ × 100
外径的标准尺寸－螺纹辅助孔直径
2 ×（标准的螺纹啮合高度）
单位(Unit)：mm
单位(Unit)：mm 单位(Unit)：mm
单位(Unit)：mm
58
Tap drill hole of TAFLET series
TAFLET系列的螺纹底孔直径
公制粗螺纹
Coarse screw thread
螺纹直径
Thread size
M1.4
M1.7
M2
M2.3
M2.5
M2.6
M3
M3.5
M4
M5
M6
M8
M10
齿距
Pitch
0.30
0.35
0.40
0.40
0.45
0.45
0.50
0.60
0.70
0.80
1.00
1.25
1.50
等级
Class
4
4
4
4
4
4
5
5
6
6
7
7
7
螺纹辅助孔直径
(咬合率)
Tap drill hole (percentage of thread engagement)
70％～100％
1.28～1.23
1.56～1.50
1.84～1.77
2.14～2.07
2.32～2.24
2.42～2.34
2.80～2.72
3.26～3.16
3.72～3.60
4.68～4.55
5.60～5.43
7.50～7.29
9.40～9.15
公制细螺纹
Fine screw thread
螺纹辅助孔直径
(咬合率)
Tap drill hole
(percentage of thread engagement)
70％～100％
3.80～3.72
4.80～4.72
5.70～5.57
5.80～5.72
7.60～7.43
9.50～9.29
9.60～9.43
M4
M5
M6
M6
M8
M10
M10
螺纹直径
Thread size
0.50
0.50
0.75
0.50
1.00
1.25
1.00
齿距
Pitch
6
6
7
7
7
7
7
等级
Class
螺纹底孔直径
Recommended tap drill sizes
For Metric screw thread
切削丝锥的螺纹底孔钻头直径
M1×0.25
M1×0.2
M1.1×0.25
M1.1×0.2
M1.2×0.25
M1.2×0.2
M1.4×0.3
M1.4×0.2
M1.6×0.35
M1.6×0.2
M1.7×0.2
M1.8×0.35
M1.8×0.2
M2×0.4
M2×0.25
M2.2×0.45
M2.2×0.25
M2.5×0.45
M2.5×0.35
M2.6×0.45
M2.6×0.35
M3×0.5
M3×0.35
M3.5×0.6
M3.5×0.35
M4×0.7
M4×0.5
M4.5×0.75
M4.5×0.5
M5×0.8
M5×0.5
M5.5×0.5
M6×1
M6×0.75
M6×0.5
M7×1
M7×0.75
M7×0.5
M8×1.25
M8×1
M8×0.75
M8×0.5
M9×1.25
M9×1
M9×0.75
M10×1.5
M10×1.25
M10×1
M10×0.75
M10×0.5
M11×1.5
M11×1
M11×0.75
M12×1.75
M12×1.5
M12×1.25
M12×1
M12×0.75
＊ M1.7×0.35
＊
＊M2.3×0.4
＊M2.3×0.25
＊
＊
＊
＊
＊
＊
0.75
0.8
0.85
0.9
0.95
1.0
1.1
1.2
1.25
1.4
1.35
1.5
1.45
1.6
1.6
1.75
1.75
1.95
1.9
2.05
2.05
2.15
2.15
2.25
2.5
2.65
2.9
3.15
3.3
3.5
3.8
4.0
4.2
4.5
5.0
5.0
5.3
5.5
6.0
6.3
6.4
6.8
7.0
7.3
7.5
7.8
8.0
8.3
8.5
8.8
9.0
9.3
9.5
9.6
10.0
10.2
10.2
10.5
10.8
11.0
11.3
0.78
0.83
0.88
0.93
0.98
1.03
1.15
1.23
1.3
1.44
1.4
1.54
1.52
1.64
1.65
1.79
1.8
1.99
1.95
2.09
2.1
2.2
2.2
2.32
2.55
2.7
2.95
3.22
3.4
3.55
3.87
4.09
4.3
4.55
5.09
5.1
5.35
5.5
6.1
6.35
6.5
6.9
7.1
7.35
7.55
7.9
8.1
8.35
8.6
8.9
9.1
9.35
9.60
9.65
10.1
10.3
10.3
10.6
10.9
11.1
11.35
0.729
0.783
0.829
0.883
0.929
0.983
1.075
1.183
1.221
1.383
1.321
1.483
1.421
1.583
1.567
1.729
1.713
1.929
1.867
2.029
2.013
2.121
2.113
2.221
2.459
2.621
2.850
3.121
3.242
3.459
3.688
3.959
4.134
4.459
4.959
4.917
5.188
5.459
5.917
6.188
6.459
6.647
6.917
7.188
7.459
7.647
7.917
8.188
8.376
8.647
8.917
9.188
9.459
9.376
9.917
10.188
10.106
10.376
10.647
10.917
11.188
0.799
0.843
0.899
0.943
0.999
1.043
1.160
1.243
1.321
1.443
1.421
1.543
1.521
1.643
1.679
1.799
1.838
1.999
1.979
2.099
2.138
2.221
2.238
2.321
2.599
2.721
3.010
3.221
3.422
3.599
3.878
4.099
4.334
4.599
5.099
5.153
5.378
5.599
6.153
6.378
6.599
6.912
7.153
7.378
7.599
7.912
8.153
8.378
8.676
8.912
9.153
9.378
9.599
9.676
10.153
10.378
10.441
10.676
10.912
11.153
11.378
0.785
0.831
0.885
0.931
0.985
1.031
1.142
1.231
1.301
1.431
1.401
1.531
1.501
1.631
1.657
1.785
1.813
1.985
1.957
2.085
2.113
2.201
2.213
2.301
2.571
2.701
2.975
3.201
3.382
3.571
3.838
4.071
4.294
4.571
5.071
5.107
5.338
5.571
6.107
6.338
6.571
6.859
7.107
7.338
7.571
7.859
8.107
8.338
8.612
8.859
9.107
9.338
9.571
9.612
10.107
10.338
10.371
10.612
10.859
11.107
11.338
0.774
0.821
0.874
0.921
0.974
1.021
1.128
1.221
1.284
1.421
1.384
1.521
1.484
1.621
1.638
1.774
1.793
1.974
1.938
2.074
2.093
2.184
2.193
2.284
2.549
2.684
2.950
3.184
3.354
3.549
3.806
4.049
4.259
4.549
5.049
5.067
5.306
5.549
6.067
6.306
6.549
6.817
7.067
7.306
7.549
7.817
8.067
8.306
8.566
8.817
9.067
9.306
9.549
9.566
10.067
10.306
10.318
10.566
10.817
11.067
11.306
推荐钻头直径
Recommended drill dia.
最大内螺纹内径D1
Maximum internal thread inner dia. D1
最小内螺纹
内径
Minimum internal
thread inner dia.
螺纹直径
Thread size 标准钻头
Standard Drill 6H 高性能钻头
High performance drill 4H 5H
M36×4
M36×3
M36×2
M36×1.5
M38×1.5
M39×4
M39×3
M39×2
M39×1.5
M40×3
M40×2
M40×1.5
M42×4.5
M42×4
M42×3
M42×2
M42×1.5
M45×4.5
M45×4
M45×3
M45×2
M45×1.5
M48×5
M48×4
32.0
33.0
34.0
34.5
36.5
35.0
36.0
37.0
37.5
37.0
38.0
38.5
37.5
38.0
39.0
40.0
40.5
40.5
41.0
42.0
43.0
43.5
43.0
44.0
32.0
33.0
34.0
34.5
36.5
35.0
36.0
37.0
37.5
37.0
38.0
38.5
37.5
38.0
39.0
40.0
－
－
41.0
42.0
43.0
－
43.0
44.0
31.670
32.752
33.835
34.376
36.376
34.670
35.752
36.835
37.376
36.752
37.835
38.376
37.129
37.670
38.752
39.835
40.376
40.129
40.670
41.752
42.835
43.376
42.587
43.670
32.270
33.252
34.210
34.676
36.676
35.270
36.252
37.210
37.676
37.252
38.210
38.676
37.799
38.270
39.252
40.210
40.676
40.799
41.270
42.252
43.210
43.676
43.297
44.270
32.145
33.152
34.135
34.612
36.612
35.145
36.152
37.135
37.612
37.152
38.135
38.612
37.659
38.145
39.152
40.135
40.612
40.659
41.145
42.152
43.135
43.612
43.147
44.145
32.045
33.067
34.071
34.566
36.566
35.045
36.067
37.071
37.566
37.067
38.071
38.566
37.554
38.045
39.067
40.071
40.566
40.554
41.045
42.067
43.071
43.566
43.037
44.045
推荐钻头直径
Recommended drill dia.
最大内螺纹内径D1
Maximum internal thread inner dia. D1
最小内螺纹
内径
Minimum internal
thread inner dia.
螺纹直径
Thread size 标准钻头
Standard Drill 6H 高性能钻头
High performance drill 4H 5H
M48×3
M48×2
M48×1.5
M50×3
M50×2
M50×1.5
M52×5
M52×4
M52×3
M52×2
M52×1.5
M55×4
M55×3
M55×2
M55×1.5
M56×5.5
M56×4
M56×3
M56×2
M56×1.5
M60×5.5
M64×6
M68×6
45.0
46.0
46.5
47.0
48.0
48.5
47.0
48.0
49.0
50.0
50.5
51.0
52.0
53.0
53.5
50.5
52.0
53.0
54.0
54.5
54.5
58.0
62.0
45.0
46.0
－
47.0
48.0
－
47.0
48.0
49.0
50.0
－
51.0
52.0
－
－
－
－
－
－
－
－
－
－
44.752
45.835
46.376
46.752
47.835
48.376
46.587
47.670
48.752
49.835
50.376
50.670
51.752
52.835
53.376
50.046
51.670
52.752
53.835
54.376
54.046
57.505
61.505
45.252
46.210
46.676
47.252
48.210
48.676
47.297
48.270
49.252
50.210
50.676
51.270
52.252
53.210
53.676
50.796
52.270
53.252
54.210
54.676
54.796
58.305
62.305
45.152
46.135
46.612
47.152
48.135
48.612
47.147
48.145
49.152
50.135
50.612
51.145
52.152
53.135
53.612
50.646
52.145
53.152
54.135
54.612
54.646
58.135
62.135
45.067
46.071
46.566
47.067
48.071
48.566
47.037
48.045
49.067
50.071
50.566
51.045
52.067
53.071
53.566
50.521
52.045
53.067
54.071
54.566
54.521
58.005
62.005
推荐钻头直径
Recommended drill dia.
最大内螺纹内径D1
Maximum internal thread inner dia. D 1
最小内螺纹
内径
Minimum internal
thread inner dia.
螺纹直径
Thread size 标准钻头
Standard Drill 6H 高性能钻头
High performance drill 4H 5H
M20×1
M22×2.5
M22×2
M22×1.5
M22×1
M23×2.5
M23×2
M24×3
M24×2
M24×1.5
M24×1
M25×3
M25×2
M25×1.5
M25×1
M26×3
M26×1.5
M27×3
M27×2
M27×1.5
M27×1
M28×3
M28×2
M28×1.5
M28×1
M30×3.5
M30×3
M30×2
M30×1.5
M30×1
M32×2
M32×1.5
M33×3.5
M33×3
M33×2
M33×1.5
M35×1.5
19.0
19.5
20.0
20.5
21.0
20.5
21.0
21.0
22.0
22.5
23.0
22.0
23.0
23.5
24.0
23.0
24.5
24.0
25.0
25.5
26.0
25.0
26.0
26.5
27.0
26.5
27.0
28.0
28.5
29.0
30.0
30.5
29.5
30.0
31.0
31.5
33.5
19.1
19.6
20.0
20.6
21.0
20.5
21.0
21.1
22.0
22.6
23.0
22.0
23.0
23.5
24.0
23.0
24.5
24.1
25.0
25.6
26.0
25.0
26.0
26.5
27.0
26.6
27.0
28.0
28.6
29.0
30.0
30.5
29.5
30.0
31.0
31.5
33.5
18.917
19.294
19.835
20.376
20.917
20.294
20.835
20.752
21.835
22.376
22.917
21.752
22.835
23.376
23.917
22.752
24.376
23.752
24.835
25.376
25.917
24.752
25.835
26.376
26.917
26.211
26.752
27.835
28.376
28.917
29.835
30.376
29.211
29.752
30.835
31.376
33.376
19.153
19.744
20.210
20.676
21.153
20.744
21.210
21.252
22.210
22.676
23.153
22.252
23.210
23.676
24.153
23.252
24.676
24.252
25.210
25.676
26.153
25.252
26.210
26.676
27.153
26.771
27.252
28.210
28.676
29.153
30.210
30.676
29.771
30.252
31.210
31.676
33.676
19.107
19.649
20.135
20.612
21.107
20.649
21.135
21.152
22.135
22.612
23.107
22.152
23.135
23.612
24.107
23.152
24.612
24.152
25.135
25.612
26.107
25.152
26.135
26.612
27.107
26.661
27.152
28.135
28.612
29.107
30.135
30.612
29.661
30.152
31.135
31.612
33.612
19.067
19.574
20.071
20.566
21.067
20.574
21.071
21.067
22.071
22.566
23.067
22.067
23.071
23.566
24.067
23.067
24.566
24.067
25.071
25.566
26.067
25.067
26.071
26.566
27.067
26.566
27.067
28.071
28.566
29.067
30.071
30.566
29.566
30.067
31.071
31.566
33.566
推荐钻头直径
Recommended drill dia.
最大内螺纹内径D1
Maximum internal thread inner dia. D1
最小内螺纹
内径
Minimum internal
thread inner dia.
螺纹直径
Thread size 标准钻头
Standard Drill 6H 高性能钻头
High performance drill 4H 5H
Standard height of percentage of thread engagement: Metric 0.5413P
Pipe 0.6403P P=pitch
Formula of the percentage of thread
engagement per tapped hole size
Percentage of thread
engagement
Standard size of outside diameter Dia. of tap drill hole
(Standard height of percentage of thread engagement)
About the list of tap drill hole
D1: is expressing JIS 6H (class 2) of internal thread inner dia.
For pitch below 0.3, please check JIS 5H (class2) in coarse screw thread;
check JIS 4H/5H (class 1) in fine screw thread.
＊: removed size from JIS
M13×1.75
M14×2
M14×1.5
M14×1.25
M14×1
M15×2
M15×1.5
M15×1
M16×2
M16×1.5
M16×1
M17×1.5
M17×1
M18×2.5
M18×2
M18×1.5
M18×1
M19×2.5
M19×1.5
M19×1
M20×2.5
M20×2
M20×1.5
11.5
11.2
12.0
12.5
12.8
13.0
13.0
13.5
14.0
14.0
14.5
15.0
15.5
16.0
15.5
16.0
16.5
17.0
16.5
17.5
18.0
17.5
18.0
18.5
11.55
11.3
12.1
12.6
12.85
13.1
13.1
13.6
14.1
14.1
14.6
15.1
15.6
16.1
15.6
16.1
16.6
17.1
16.6
17.6
18.1
17.6
18.1
18.6
11.459
11.106
11.835
12.376
12.647
12.917
12.835
13.376
13.917
13.835
14.376
14.917
15.376
15.917
15.294
15.835
16.376
16.917
16.294
17.376
17.917
17.294
17.835
18.376
11.599
11.441
12.210
12.676
12.912
13.153
13.210
13.676
14.153
14.210
14.676
15.153
15.676
16.153
15.744
16.210
16.676
17.153
16.744
17.676
18.153
17.744
18.210
18.676
11.571
11.371
12.135
12.612
12.859
13.107
13.135
13.612
14.107
14.135
14.612
15.107
15.612
16.107
15.649
16.135
16.612
17.107
16.649
17.612
18.107
17.649
18.135
18.612
11.549
11.318
12.071
12.566
12.817
13.067
13.071
13.566
14.067
14.071
14.566
15.067
15.566
16.067
15.574
16.071
16.566
17.067
16.574
17.566
18.067
17.574
18.071
18.566
＊M12×0.5
丝锥螺纹辅助孔直径表
D1：表示JIS 6H（2级）的内螺纹内径。
齿距0.3以下表示粗螺纹的5H（2级）、细螺纹的4H、5H（1级）。
＊：是指从JIS上删除的尺寸。
标准啮合高度： 公 尺 0.5413P
管 用 0.6403P P=齿距
螺纹辅助孔直径的咬合率的计算公式
咬合率（%）＝ × 100
外径的标准尺寸－螺纹辅助孔直径
2 ×（标准的螺纹啮合高度）
单位(Unit)：mm
单位(Unit)：mm 单位(Unit)：mm
单位(Unit)：mm
Tap drill hole of TAFLET series
TAFLET系列的螺纹底孔直径
公制粗螺纹
Coarse screw thread
螺纹直径
Thread size
M1.4
M1.7
M2
M2.3
M2.5
M2.6
M3
M3.5
M4
M5
M6
M8
M10
齿距
Pitch
0.30
0.35
0.40
0.40
0.45
0.45
0.50
0.60
0.70
0.80
1.00
1.25
1.50
等级
Class
4
4
4
4
4
4
5
5
6
6
7
7
7
螺纹辅助孔直径
(咬合率)
Tap drill hole (percentage of thread engagement)
70％～100％
1.28～1.23
1.56～1.50
1.84～1.77
2.14～2.07
2.32～2.24
2.42～2.34
2.80～2.72
3.26～3.16
3.72～3.60
4.68～4.55
5.60～5.43
7.50～7.29
9.40～9.15
公制细螺纹
Fine screw thread
螺纹辅助孔直径
(咬合率)
Tap drill hole
(percentage of thread engagement)
70％～100％
3.80～3.72
4.80～4.72
5.70～5.57
5.80～5.72
7.60～7.43
9.50～9.29
9.60～9.43
M4
M5
M6
M6
M8
M10
M10
螺纹直径
Thread size
0.50
0.50
0.75
0.50
1.00
1.25
1.00
齿距
Pitch
6
6
7
7
7
7
7
等级
Class
螺纹底孔直径
Recommended tap drill sizes
For Metric screw thread
切削丝锥的螺纹底孔钻头直径
M1×0.25
M1×0.2
M1.1×0.25
M1.1×0.2
M1.2×0.25
M1.2×0.2
M1.4×0.3
M1.4×0.2
M1.6×0.35
M1.6×0.2
M1.7×0.2
M1.8×0.35
M1.8×0.2
M2×0.4
M2×0.25
M2.2×0.45
M2.2×0.25
M2.5×0.45
M2.5×0.35
M2.6×0.45
M2.6×0.35
M3×0.5
M3×0.35
M3.5×0.6
M3.5×0.35
M4×0.7
M4×0.5
M4.5×0.75
M4.5×0.5
M5×0.8
M5×0.5
M5.5×0.5
M6×1
M6×0.75
M6×0.5
M7×1
M7×0.75
M7×0.5
M8×1.25
M8×1
M8×0.75
M8×0.5
M9×1.25
M9×1
M9×0.75
M10×1.5
M10×1.25
M10×1
M10×0.75
M10×0.5
M11×1.5
M11×1
M11×0.75
M12×1.75
M12×1.5
M12×1.25
M12×1
M12×0.75
＊ M1.7×0.35
＊
＊M2.3×0.4
＊M2.3×0.25
＊
＊
＊
＊
＊
＊
0.75
0.8
0.85
0.9
0.95
1.0
1.1
1.2
1.25
1.4
1.35
1.5
1.45
1.6
1.6
1.75
1.75
1.95
1.9
2.05
2.05
2.15
2.15
2.25
2.5
2.65
2.9
3.15
3.3
3.5
3.8
4.0
4.2
4.5
5.0
5.0
5.3
5.5
6.0
6.3
6.4
6.8
7.0
7.3
7.5
7.8
8.0
8.3
8.5
8.8
9.0
9.3
9.5
9.6
10.0
10.2
10.2
10.5
10.8
11.0
11.3
0.78
0.83
0.88
0.93
0.98
1.03
1.15
1.23
1.3
1.44
1.4
1.54
1.52
1.64
1.65
1.79
1.8
1.99
1.95
2.09
2.1
2.2
2.2
2.32
2.55
2.7
2.95
3.22
3.4
3.55
3.87
4.09
4.3
4.55
5.09
5.1
5.35
5.5
6.1
6.35
6.5
6.9
7.1
7.35
7.55
7.9
8.1
8.35
8.6
8.9
9.1
9.35
9.60
9.65
10.1
10.3
10.3
10.6
10.9
11.1
11.35
0.729
0.783
0.829
0.883
0.929
0.983
1.075
1.183
1.221
1.383
1.321
1.483
1.421
1.583
1.567
1.729
1.713
1.929
1.867
2.029
2.013
2.121
2.113
2.221
2.459
2.621
2.850
3.121
3.242
3.459
3.688
3.959
4.134
4.459
4.959
4.917
5.188
5.459
5.917
6.188
6.459
6.647
6.917
7.188
7.459
7.647
7.917
8.188
8.376
8.647
8.917
9.188
9.459
9.376
9.917
10.188
10.106
10.376
10.647
10.917
11.188
0.799
0.843
0.899
0.943
0.999
1.043
1.160
1.243
1.321
1.443
1.421
1.543
1.521
1.643
1.679
1.799
1.838
1.999
1.979
2.099
2.138
2.221
2.238
2.321
2.599
2.721
3.010
3.221
3.422
3.599
3.878
4.099
4.334
4.599
5.099
5.153
5.378
5.599
6.153
6.378
6.599
6.912
7.153
7.378
7.599
7.912
8.153
8.378
8.676
8.912
9.153
9.378
9.599
9.676
10.153
10.378
10.441
10.676
10.912
11.153
11.378
0.785
0.831
0.885
0.931
0.985
1.031
1.142
1.231
1.301
1.431
1.401
1.531
1.501
1.631
1.657
1.785
1.813
1.985
1.957
2.085
2.113
2.201
2.213
2.301
2.571
2.701
2.975
3.201
3.382
3.571
3.838
4.071
4.294
4.571
5.071
5.107
5.338
5.571
6.107
6.338
6.571
6.859
7.107
7.338
7.571
7.859
8.107
8.338
8.612
8.859
9.107
9.338
9.571
9.612
10.107
10.338
10.371
10.612
10.859
11.107
11.338
0.774
0.821
0.874
0.921
0.974
1.021
1.128
1.221
1.284
1.421
1.384
1.521
1.484
1.621
1.638
1.774
1.793
1.974
1.938
2.074
2.093
2.184
2.193
2.284
2.549
2.684
2.950
3.184
3.354
3.549
3.806
4.049
4.259
4.549
5.049
5.067
5.306
5.549
6.067
6.306
6.549
6.817
7.067
7.306
7.549
7.817
8.067
8.306
8.566
8.817
9.067
9.306
9.549
9.566
10.067
10.306
10.318
10.566
10.817
11.067
11.306
推荐钻头直径
Recommended drill dia.
最大内螺纹内径D1
Maximum internal thread inner dia. D1
最小内螺纹
内径
Minimum internal
thread inner dia.
螺纹直径
Thread size 标准钻头
Standard Drill 6H 高性能钻头
High performance drill 4H 5H
M36×4
M36×3
M36×2
M36×1.5
M38×1.5
M39×4
M39×3
M39×2
M39×1.5
M40×3
M40×2
M40×1.5
M42×4.5
M42×4
M42×3
M42×2
M42×1.5
M45×4.5
M45×4
M45×3
M45×2
M45×1.5
M48×5
M48×4
32.0
33.0
34.0
34.5
36.5
35.0
36.0
37.0
37.5
37.0
38.0
38.5
37.5
38.0
39.0
40.0
40.5
40.5
41.0
42.0
43.0
43.5
43.0
44.0
32.0
33.0
34.0
34.5
36.5
35.0
36.0
37.0
37.5
37.0
38.0
38.5
37.5
38.0
39.0
40.0
－
－
41.0
42.0
43.0
－
43.0
44.0
31.670
32.752
33.835
34.376
36.376
34.670
35.752
36.835
37.376
36.752
37.835
38.376
37.129
37.670
38.752
39.835
40.376
40.129
40.670
41.752
42.835
43.376
42.587
43.670
32.270
33.252
34.210
34.676
36.676
35.270
36.252
37.210
37.676
37.252
38.210
38.676
37.799
38.270
39.252
40.210
40.676
40.799
41.270
42.252
43.210
43.676
43.297
44.270
32.145
33.152
34.135
34.612
36.612
35.145
36.152
37.135
37.612
37.152
38.135
38.612
37.659
38.145
39.152
40.135
40.612
40.659
41.145
42.152
43.135
43.612
43.147
44.145
32.045
33.067
34.071
34.566
36.566
35.045
36.067
37.071
37.566
37.067
38.071
38.566
37.554
38.045
39.067
40.071
40.566
40.554
41.045
42.067
43.071
43.566
43.037
44.045
推荐钻头直径
Recommended drill dia.
最大内螺纹内径D1
Maximum internal thread inner dia. D1
最小内螺纹
内径
Minimum internal
thread inner dia.
螺纹直径
Thread size 标准钻头
Standard Drill 6H 高性能钻头
High performance drill 4H 5H
M48×3
M48×2
M48×1.5
M50×3
M50×2
M50×1.5
M52×5
M52×4
M52×3
M52×2
M52×1.5
M55×4
M55×3
M55×2
M55×1.5
M56×5.5
M56×4
M56×3
M56×2
M56×1.5
M60×5.5
M64×6
M68×6
45.0
46.0
46.5
47.0
48.0
48.5
47.0
48.0
49.0
50.0
50.5
51.0
52.0
53.0
53.5
50.5
52.0
53.0
54.0
54.5
54.5
58.0
62.0
45.0
46.0
－
47.0
48.0
－
47.0
48.0
49.0
50.0
－
51.0
52.0
－
－
－
－
－
－
－
－
－
－
44.752
45.835
46.376
46.752
47.835
48.376
46.587
47.670
48.752
49.835
50.376
50.670
51.752
52.835
53.376
50.046
51.670
52.752
53.835
54.376
54.046
57.505
61.505
45.252
46.210
46.676
47.252
48.210
48.676
47.297
48.270
49.252
50.210
50.676
51.270
52.252
53.210
53.676
50.796
52.270
53.252
54.210
54.676
54.796
58.305
62.305
45.152
46.135
46.612
47.152
48.135
48.612
47.147
48.145
49.152
50.135
50.612
51.145
52.152
53.135
53.612
50.646
52.145
53.152
54.135
54.612
54.646
58.135
62.135
45.067
46.071
46.566
47.067
48.071
48.566
47.037
48.045
49.067
50.071
50.566
51.045
52.067
53.071
53.566
50.521
52.045
53.067
54.071
54.566
54.521
58.005
62.005
推荐钻头直径
Recommended drill dia.
最大内螺纹内径D1
Maximum internal thread inner dia. D 1
最小内螺纹
内径
Minimum internal
thread inner dia.
螺纹直径
Thread size 标准钻头
Standard Drill 6H 高性能钻头
High performance drill 4H 5H
M20×1
M22×2.5
M22×2
M22×1.5
M22×1
M23×2.5
M23×2
M24×3
M24×2
M24×1.5
M24×1
M25×3
M25×2
M25×1.5
M25×1
M26×3
M26×1.5
M27×3
M27×2
M27×1.5
M27×1
M28×3
M28×2
M28×1.5
M28×1
M30×3.5
M30×3
M30×2
M30×1.5
M30×1
M32×2
M32×1.5
M33×3.5
M33×3
M33×2
M33×1.5
M35×1.5
19.0
19.5
20.0
20.5
21.0
20.5
21.0
21.0
22.0
22.5
23.0
22.0
23.0
23.5
24.0
23.0
24.5
24.0
25.0
25.5
26.0
25.0
26.0
26.5
27.0
26.5
27.0
28.0
28.5
29.0
30.0
30.5
29.5
30.0
31.0
31.5
33.5
19.1
19.6
20.0
20.6
21.0
20.5
21.0
21.1
22.0
22.6
23.0
22.0
23.0
23.5
24.0
23.0
24.5
24.1
25.0
25.6
26.0
25.0
26.0
26.5
27.0
26.6
27.0
28.0
28.6
29.0
30.0
30.5
29.5
30.0
31.0
31.5
33.5
18.917
19.294
19.835
20.376
20.917
20.294
20.835
20.752
21.835
22.376
22.917
21.752
22.835
23.376
23.917
22.752
24.376
23.752
24.835
25.376
25.917
24.752
25.835
26.376
26.917
26.211
26.752
27.835
28.376
28.917
29.835
30.376
29.211
29.752
30.835
31.376
33.376
19.153
19.744
20.210
20.676
21.153
20.744
21.210
21.252
22.210
22.676
23.153
22.252
23.210
23.676
24.153
23.252
24.676
24.252
25.210
25.676
26.153
25.252
26.210
26.676
27.153
26.771
27.252
28.210
28.676
29.153
30.210
30.676
29.771
30.252
31.210
31.676
33.676
19.107
19.649
20.135
20.612
21.107
20.649
21.135
21.152
22.135
22.612
23.107
22.152
23.135
23.612
24.107
23.152
24.612
24.152
25.135
25.612
26.107
25.152
26.135
26.612
27.107
26.661
27.152
28.135
28.612
29.107
30.135
30.612
29.661
30.152
31.135
31.612
33.612
19.067
19.574
20.071
20.566
21.067
20.574
21.071
21.067
22.071
22.566
23.067
22.067
23.071
23.566
24.067
23.067
24.566
24.067
25.071
25.566
26.067
25.067
26.071
26.566
27.067
26.566
27.067
28.071
28.566
29.067
30.071
30.566
29.566
30.067
31.071
31.566
33.566
推荐钻头直径
Recommended drill dia.
最大内螺纹内径D1
Maximum internal thread inner dia. D1
最小内螺纹
内径
Minimum internal
thread inner dia.
螺纹直径
Thread size 标准钻头
Standard Drill 6H 高性能钻头
High performance drill 4H 5H
Standard height of percentage of thread engagement: Metric 0.5413P
Pipe 0.6403P P=pitch
Formula of the percentage of thread
engagement per tapped hole size
Percentage of thread
engagement
Standard size of outside diameter Dia. of tap drill hole
(Standard height of percentage of thread engagement)
About the list of tap drill hole
D1: is expressing JIS 6H (class 2) of internal thread inner dia.
For pitch below 0.3, please check JIS 5H (class2) in coarse screw thread;
check JIS 4H/5H (class 1) in fine screw thread.
＊: removed size from JIS
M13×1.75
M14×2
M14×1.5
M14×1.25
M14×1
M15×2
M15×1.5
M15×1
M16×2
M16×1.5
M16×1
M17×1.5
M17×1
M18×2.5
M18×2
M18×1.5
M18×1
M19×2.5
M19×1.5
M19×1
M20×2.5
M20×2
M20×1.5
11.5
11.2
12.0
12.5
12.8
13.0
13.0
13.5
14.0
14.0
14.5
15.0
15.5
16.0
15.5
16.0
16.5
17.0
16.5
17.5
18.0
17.5
18.0
18.5
11.55
11.3
12.1
12.6
12.85
13.1
13.1
13.6
14.1
14.1
14.6
15.1
15.6
16.1
15.6
16.1
16.6
17.1
16.6
17.6
18.1
17.6
18.1
18.6
11.459
11.106
11.835
12.376
12.647
12.917
12.835
13.376
13.917
13.835
14.376
14.917
15.376
15.917
15.294
15.835
16.376
16.917
16.294
17.376
17.917
17.294
17.835
18.376
11.599
11.441
12.210
12.676
12.912
13.153
13.210
13.676
14.153
14.210
14.676
15.153
15.676
16.153
15.744
16.210
16.676
17.153
16.744
17.676
18.153
17.744
18.210
18.676
11.571
11.371
12.135
12.612
12.859
13.107
13.135
13.612
14.107
14.135
14.612
15.107
15.612
16.107
15.649
16.135
16.612
17.107
16.649
17.612
18.107
17.649
18.135
18.612
11.549
11.318
12.071
12.566
12.817
13.067
13.071
13.566
14.067
14.071
14.566
15.067
15.566
16.067
15.574
16.071
16.566
17.067
16.574
17.566
18.067
17.574
18.071
18.566
＊M12×0.5
丝锥螺纹辅助孔直径表
D1：表示JIS 6H（2级）的内螺纹内径。
齿距0.3以下表示粗螺纹的5H（2级）、细螺纹的4H、5H（1级）。
＊：是指从JIS上删除的尺寸。
标准啮合高度： 公 尺 0.5413P
管 用 0.6403P P=齿距
螺纹辅助孔直径的咬合率的计算公式
咬合率（%）＝ × 100
外径的标准尺寸－螺纹辅助孔直径
2 ×（标准的螺纹啮合高度）
单位(Unit)：mm
单位(Unit)：mm 单位(Unit)：mm
单位(Unit)：mm
59
螺纹直径
Thread Size
推荐钻头直径
Recommended drill dia. 最小内螺纹
Minimum
internal thread
inner dia.
最大内螺纹
Maximum
internal thread
inner dia. D1
标准钻头
Standard Drill
高性能钻头
High performance
drill
M2.5 × 0.45 2.60 2.65 2.60 2.68
M2.6 × 0.45 2.70 2.75 2.70 2.78
M3×0.5 3.10 3.15 3.12 3.20
M4×0.7 4.20 4.25 4.17 4.30
M5×0.8 5.25 5.30 5.16 5.33
M6×1 6.30 6.40 6.25 6.42
M8×1.25 8.40 8.50 8.31 8.52
M10×1.5 10.50 10.60 10.37 10.62
M10×1.25 10.40 10.50 10.31 10.52
M12×1.75 12.60 12.70 12.43 12.73
M12×1.5 12.50 12.60 12.37 12.62
M12×1.25 12.40 12.50 12.31 12.52
M14×2 14.70 14.80 14.49 14.83
M14×1.5 14.50 14.60 14.37 14.62
M16×2 16.70 16.80 16.49 16.83
M16×1.5 16.50 16.60 16.37 16.62
* 螺纹的内径是通过参考航空航天制造商资料制成的。
The internal thread inner diameter is based on the data of the helisert manufacturer.
螺纹直径
Thread Size
推荐钻头直径
Recommended drill dia. 最小内螺纹
Minimum
internal thread
inner dia.
最大内螺纹
Maximum
internal thread
inner dia. D1
标准钻头
Standard Drill
高性能钻头
High performance
drill
No.4-40UNC 3.10 3.15 2.985 3.180
No.5-40UNC 3.40 3.45 3.315 3.487
No.6-32UNC 3.80 3.85 3.678 3.878
No.6-40UNF 3.75 3.80 3.645 3.817
No.8-32UNC 4.45 4.50 4.339 4.523
No.8-36UNF 4.40 4.45 4.321 4.498
No.10-24UNC 5.20 5.25 5.055 5.283
No.10-32UNF 5.10 5.15 4.999 5.184
No.12-24UNC 5.85 5.90 5.715 5.943
1/4-20UNC 6.70 6.80 6.625 6.868
1/4-28UNF 6.60 6.70 6.546 6.720
5/16-18UNC 8.30 8.40 8.243 8.488
5/16-24UNF 8.20 8.30 8.167 8.351
3/8-16UNC 10.00 10.10 9.868 10.126
3/8-24UNF 9.80 9.90 9.754 9.931
7/16-14UNC 11.60 11.70 11.507 11.783
7/16-20UNF 11.40 11.50 11.387 11.584
1/2-13UNC 13.20 13.30 13.122 13.393
1/2-20UNF 13.00 13.10 12.975 13.172
5/8-11UNC 16.50 16.60 16.376 16.672
5/8-18UNF 16.20 16.30 16.180 16.385
* 螺纹的内径是通过参考航空航天制造商资料制成的。
The internal thread inner diameter is based on the data of the helisert manufacturer.
螺纹直径
Thread Size
推荐钻头直径
Recommended drill dia. 最小内螺纹
Minimum
internal thread
inner dia.
最大内螺纹
Maximum
internal thread
inner dia. D1
标准钻头
Standard Drill
高性能钻头
High performance
drill
No.4-40UNC 2.25 2.3 2.157 2.385
No.5-40UNC 2.55 2.6 2.487 2.697
No.6-32UNC 2.75 2.8 2.642 2.895
No.6-40UNF 2.95 3.0 2.820 3.022
No.8-32UNC 3.40 3.5 3.302 3.530
No.8-36UNF 3.50 3.6 3.404 3.606
No.10-24UNC 3.80 3.9 3.683 3.962
No.10-32UNF 4.00 4.1 3.963 4.165
No.12-24UNC 4.40 4.5 4.344 4.597
1/4-20UNC 5.10 5.2 4.979 5.257
1/4-28UNF 5.40 5.5 5.360 5.588
5/16-18UNC 6.60 6.7 6.401 6.731
5/16-24UNF 6.90 7.0 6.782 7.035
3/8-16UNC 8.00 8.1 7.798 8.153
3/8-24UNF 8.50 8.6 8.382 8.636
7/16-14UNC 9.40 9.5 9.144 9.550
7/16-20UNF 9.90 10.0 9.729 10.033
1/2-13UNC 10.90 11.0 10.592 11.023
1/2-20UNF 11.50 11.6 11.329 11.607
5/8-11UNC 13.70 13.8 13.386 13.868
5/8-18UNF 14.50 14.6 14.351 14.681
* 螺纹的内径表示 2B(JISB0210 和 JISB0212)。
The internal thread inner diameter represents 2B(JIS B 0210 and JIS B 0212)
单位（Unit）：mm 单位（Unit）：mm
单位（Unit）：mm
Recommended tap drill sizes
公制航空航天螺纹用
For Metric screw threads helisert
美制螺纹用
For Unified screw threads
美制航空航天螺纹用
For Unified screw threads helisert
60
商品介绍
选型指南
SG
丝锥系列
Hyper Z
丝锥系列
N
丝锥系列
EXCEL
丝锥系列
TAFLET
丝锥系列
SGSP
SGSP-1.5P
SGSPL
SGSP-T
SGPO
SGPOL
SG螺旋槽丝锥
SG短切刃螺旋槽丝锥
SG长柄螺旋槽丝锥
SG螺旋槽丝锥 难削材、钛合金专用
SG螺尖丝锥
SG长柄螺尖丝锥
ZSP
ZSPL
ZSP-SUS
ZSP-LS
ZPO
ZPOL
ZPO-SUS
Hyper Z螺旋槽丝锥
Hyper Z长柄螺旋槽丝锥
Hyper Z螺旋槽丝锥 不锈钢用
Hyper Z小螺旋角丝锥
Hyper Z螺尖丝锥
Hyper Z长柄螺尖丝锥
Hyper Z螺尖丝锥 不锈钢用
NSP
NSPL
NPO
NPOL
HT
N螺旋槽丝锥
N长柄螺旋槽丝锥
N螺尖丝锥
N长柄螺尖丝锥
直槽丝锥
TFS
TFL
TFLL
TFST
TFSTL
挤压丝锥-S
挤压丝锥-L
挤压丝锥-L 长柄
挤压丝锥 钢用
挤压丝锥 钢用长柄
切削条件
钻柄四棱部尺寸、凸顶尖长度
精度等级
螺纹底孔直径表
丝锥综合目录
T aps Ge n e r a l C a t a l o g
ST
丝锥系列
STSP
STPO
ST螺旋槽丝锥
ST螺尖丝锥
ESP
EHT
EXCEL螺旋槽丝锥
EXCEL直槽丝锥
AQUA EX钻头VF AQDEXVF
盲孔螺纹孔(深孔）
Blind holes(Deep Holes)
曲面螺纹孔
Curved surface
盲孔螺纹孔
Blind holes
锪孔、螺纹孔（倾斜面）
Slop, Spot facing
薄板螺纹孔
Thin board
盲孔螺纹孔（薄板）
Blind holes(Thin board)
带螺纹孔的深孔
Deep holes
内螺纹加工需要倒角、底孔加工、攻丝等多个工序，
NACHI为您提供结合了钻头与丝锥加工中贯穿整个工序的解决方案。
钻头
Drills
丝锥
Taps
AQDEXS/AQDEXOH3F
SGESS 等
AQDEXR
SGESR 等
AQDEXST
AGSTD
AQDEXST
AGSTD
AQDEXZ
AQDEXZOH3D
AQDEXZ
AQDEXVF1.5D+TVFZ
AQDEXZ
SGSP/SGSSP
GSPS/GSP 等
SGSP/GSP
等
为通孔时
SGPO/GGN 等
SGPO/GGN
等
SGSP-1.5P/GHT
等
SGSPL/GSPS
等
AQDEXST/AGSTD
AQDEXOH10D～30D
AQDEXOHPLT
SGSP
SGSSP
AQDEXOH3D/AQDEXS
SGESS 等
AQDEXST
AGSTD
AQDEXST
AGSTD
AQDEXST
AGSTD
AQDEXZ
AQDEXZOH3D
AQDEXST
AGSTD
AQUA EX钻头 AQDEXS
AQUA EX油孔钻 AQDEXOH3D/5D/8D
AQUA EX油孔钻 AQDEXOH3F
SG-ESS钻头 SGESS
SG-ESR钻头 SGESR
AG-SUS钻头 AGSUSS
AQUA系列EX先导油孔型 AQDEXOHPLT
AQUA EX长油孔钻长钻 AQDEXOH10D～30D
AG强力长钻 AGPLSD
AQUA EX平头型 AQDEXZ
AQUA EX平头油孔钻 AQDEXZOH3D
AQUA EX平头钻VF AQDEXVF1.5D＋TVFZ
SG平头钻 SGEZ
AQUA EX定位中心钻 AQDEXST
AG定位中心钻 AGSTD
锪孔用钻头系列 HCD/SCD/RCD
超硬钻
Carbide Drills
高速钢钻头
HSS Drills
专用导向孔加工用钻头
Guide holes Drills
深孔用钻头
Drills for deep holes
深孔用钻头
FLAT Drills
平头钻
Centering Drills
钻中心
Spot facing Drills
ＳＧ丝锥系列
SG series
■ 采用高级粉末高速钢与SG涂膜，
实现最长的丝锥使用寿命和稳定加工
■ 性能优异，无被削材、加工机械及切削条件限制。
■ Realized stable cutting screw threads, and have the longest
tool life by high grade powder HSS and SG coating
■ Superior performance can exert on cutting various materials
and machines, and wide range of cutting conditions
ST丝锥系列
ST series
■ Optimized design for multipurpose usage
■ Not influenced by equipment, stable tapping,
less fluctuation of quality
■ 重视通用性的形状设计
■ 不受设备、加工、被削材的限制，可实现偏
差较小的稳定加工
N 丝锥系列
N series
■ High flexibility screw threads have good cost
performance
■ By using high vanadium HSS, the tool life is longer
than before
■ 性价比超群的通用型丝锥
■ 采用高钒高速钢，实现长寿命
Hyper Z series
■ Using the NACHI owned material development technology,
heat treatment, grinding technology
■ According to the machining principle and abrasion analysis of
gear cutting tool and broach processing technology,
and adopting the best shape design, it can realize stable
processing with small life fluctuation
■ 运用了NACHI所拥有的材料开发技术、研磨技术、表
面处理等
■ 根据由齿轮刀具及拉刀加工技术得知的机械加工原
理及磨损分析，采用适合的形状设计，实现寿命波动
小的稳定加工
丝锥系列
NACHI recommends threaded holes cutting tools
Cutting for internal thread needs many processes, Chamfering, Drilling prepared holes, tapping etc.
Drill and Tap with set NACHI proposes that optimize by omitting processes.
NACHI的提案
■ Stable cutting screw threads
because no chips are produced
■ Forming taps improves screw strength
■ Carbide tap is most suitable
for cast iron and nonferrous metals
■ High speed cutting screw threads and long tool life
EXCEL 丝锥系列
EXCEL series
TAFLET 丝锥系列
TAFLET series
■ 最适用于铸铁或有色金属
■ 可实现高速螺纹加工的长寿命超硬丝锥
■ 不产生切屑，可实现稳定加工
■ 可提高螺纹强度的挤压丝锥
87-94
95-100
101-102
103
104-105
106
107-108
109-110
111-112
113-114
115
116
117-118
119-120
121
122
123
124-125
126
127-128
129
130
131
131
132
132
133
133
134
135
136
137-138
139-140
CATALOG NO. TW2023C-FW2023004
2023.3.X-JX-JX
https://www.nachi.com.cn/
北京分公司
重庆分公司
沈阳分公司
广州分公司
武汉分公司
宁波分公司
长春事务所
北京市朝阳区朝外大街乙12号 昆泰国际大厦Ｏ-1111室 邮编:100020
重庆市渝北区黄山大道中段67号信达国际D座405室 邮编：401120
辽宁省沈阳市沈河区悦宾街1号方圆大厦第3层304室 邮编:110000
广州市高新技术产业开发区科学城南翔二路72号易翔科技园A栋2楼 邮编:510670
湖北省武汉市武汉经济技术开发区东风三路东合中心D栋402室 邮编:430056
浙江省宁波市鄞州区启新路128号八骏湾G座 邮编:315040
吉林省长春市绿园区景阳大路3333号明翰国际大厦1827室 邮编:130062
NCC分公司地址及联络方式
不二越（中国）有限公司
上海市青浦区诸光路1988号国家会展中心A座5层 邮编: 201702
Tel: 010-5879-0181
Tel: 023-8816-1967
Tel: 024-3120-2252
Tel: 020-8200-6163
Tel: 027-8473-1747
Tel: 0574-8813-5499
Tel: 0431-8939-5595
Fax: 010-5879-0182
Fax: 023-8816-1968
Fax: 024-2250-5316
Tel: 021-6915-2200 Fax: 021-6915-5427
HEAD OFFICE Shiodome Sumitomo Bldg. 17F 1-9-2 Higashi-shinbashi, Minato-ku, Tokyo 105-0021, JAPAN Tel: 03-5568-5111 Fax: 03-5568-5206
