Inch

Metric

1"

1 1/4"

2"

3 mm

4 mm

6 mm

8 mm

10 mm

12 mm

14 mm

16 mm

18 mm

20 mm

25 mm

Carbide

Steel

Aluminum Titanium Chromium Nitride (AlTiCrN) Coated

Aluminum Titanium Nitride (AlTiN) Coated

Black Oxide

Diamond Coated

Diamondlike Carbon (DLC) Coated

Nickel Plated

Titanium Aluminum Nitride (TiAlN) Coated

Titanium Carbon Nitride (TiCN) Coated

Titanium Diboride (TiB₂) Coated

Titanium Nitride (TiN) Coated

Uncoated

Coarse

Fine

20°

29° to 31°

30°

30° to 32°

35°

36°

36° to 38°

36° to 39°

37°

45°

Equal

Variable

Yes

No

EAR99

1"

1 1/8"

1 1/4"

1 3/8"

1 1/2"

1 9/16"

1 5/8"

1 23/32"

1 3/4"

1 7/8"

1 61/64"

1 31/32"

2"

2 1/4"

2 15/32"

1"

1 1/4"

1 1/2"

2"

0.012"

0.02"

0.031"

0.2 mm

0.3 mm

0.5 mm

0.8 mm