Inch

Metric

1"

1 1/4"

2"

3 mm

4 mm

4.8 mm

5 mm

6 mm

7 mm

8 mm

9 mm

9.5 mm

10 mm

12 mm

12.7 mm

14 mm

15.9 mm

16 mm

18 mm

19 mm

20 mm

22 mm

22.2 mm

25 mm

Carbide

Cubic Boron Nitride

Steel

Aluminum Chromium Nitride (AlCrN) Coated

Aluminum Non-Ferrous (ANF) Coated

Aluminum Titanium Nitride (AlTiN) Coated

Diamond Coated

Diamondlike Carbon (DLC) Coated

Titanium Aluminum Nitride (TiAlN) Coated

Titanium Aluminum Silicon Nitride (TiAlSiN) Coated

Titanium Carbon Nitride (TiCN) Coated

Titanium Nitride (TiN) Coated

Uncoated

20°

30°

40°

45°

60°

82°

90°

120°

0°

10°

12°

15°

20°

29° to 31°

30°

30° to 32°

33°

35°

35° to 38°

36°

36° to 38°

36° to 39°

37°

37° to 39°

38°

39° to 41°

40°

40° to 42°

41°

41° to 45°

45°

Yes

No

EAR99

1"

1 5/16"

1 3/4"

1 7/8"

2"

2 1/2"

2 7/8"

2 15/16"

3"

3 3/4"

Coarse

Fine

0.001"

0.002"

0.003"

0.004"

0.005"

0.006"

0.007"

0.009"

0.01"

0.011"

0.012"

0.016"

0.02"

0.024"

0.031"

0.04 mm

0.05 mm

0.06 mm

0.07 mm

0.08 mm

0.09 mm

0.1 mm

0.11 mm

0.12 mm

0.13 mm

0.14 mm

0.15 mm

0.16 mm

0.18 mm

0.19 mm

0.2 mm

0.24 mm

0.25 mm

0.3 mm

0.35 mm

0.5 mm

0.7 mm

0.8 mm

1 mm

1.2 mm

1.4 mm

1.9 mm