美制带钻丝锥 丝锥 机用

规格

总长

螺纹长

钻头长

钻头尺寸

size

overall length

thread lenght

drill lenght

drill size

4-40nc

1-7/8

9/16

1/4

0.0890

4-48nf

1-7/8

9/16

1/4

0.0930

5-40nc

1-15/16

5/8

9/32

0.1015

5-44nf

1-15/16

5/8

9/32

0.1040

6-32nc

2

11/16

5/16

0.1095

6-40nf

2

11/16

5/16

0.1150

8-32nc

2-1/8

3/4

3/8

0.1360

8-36nf

2-1/8

3/4

3/8

0.1385

10-24nc

2-3/8

7/8

13/32

0.1520

10-32nf

2-3/8

7/8

13/32

0.1610

12-24nc

2-3/8

7/8

15/32

0.1770

12-28nf

2-3/8

7/8

15/32

0.1835

1/4-20nc

2-1/2

15/16

17/32

0.2010

1/4-28nf

2-1/2

15/16

17/32

0.2175

5/16-18nc

3

1-1/8

11/16

0.2570

5/16-24nf

3

1-1/8

11/16

0.2720

3/8-16nc

3-1/2

1-1/4

13/16

0.3125

3/8-24nf

3-1/2

1-1/4

13/16

0.3345

7/16-14nc

3-7/8

1-7/16

1

0.3680

7/16-20nf

3-7/8

1-7/16

1

0.3890

1/2-13nc

4-1/4

1-21/32

1-1/8

0.4250

1/2-20nf

4-1/4

1-21/32

1-1/8

0.4510