ANSI B94.11 M HSS jobber drill

Dia

L1

L2

Dec.

Φ

Overall Length

Flute Length

Equv.

1/16

3/4

3/16

0.0156

1/32

1-3/8

1/2

0.0312

3/64

1-3/4

3/4

0.0496

1/16

1-7/8

7/8

0.0625

5/64

2

1

0.0781

3/32

2-1/4

1-1/4

0.0938

7/64

2-5/8

1-1/2

0.1094

1/8

2-3/4

1-5/8

0.1250

9/64

2-7/8

1-3/4

0.1406

5/32

3-1/8

2

0.1562

11/64

3-1/4

2-1/8

0.1719

3/16

3-1/2

2-5/6

0.1875

13/64

3-5/8

2-7/16

0.2031

7/32

3-3/4

2-1/2

0.2188

15/64

3-7/8

2-5/8

0.2344

1/4

4

2-3/4

0.2500

17/64

4-1/8

2-7/8

0.2656

9/32

4-1/4

2-15/16

0.2812

19/64

4-3/8

3-1/16

0.2969

5/16

4-1/2

3-3/16

0.3125

21/64

4-5/8

3-5/16

0.3281

11/32

4-3/4

3-7/16

0.3438

23/64

4-7/8

3-1/2

0.3594

3/8

5

3-5/8

0.3750

25/64

5-1/8

3-3/4

0.3906

13/32

5-1/4

3-7/8

0.4062

27/64

5-3/8

3-15/16

0.4219

7/16

5-1/2

4-1/16

0.4375

29/64

5-5/8

4-3/16

0.4531

15/32

5-3/4

4-5/16

0.4688

31/64

5-7/8

4-3/8

0.4844

1/2

6

4-1/2

0.5000