Inch

Metric

30°

40°

45°

60°

82°

90°

120°

1"

3 mm

4 mm

6 mm

8 mm

10 mm

12 mm

14 mm

16 mm

18 mm

20 mm

25 mm

Aluminum

Brass

Bronze

Copper

Fiberglass

Iron

Nickel

Plastic

Stainless Steel

Steel

Titanium

Hardened Steel

Carbide

Carbide-Tipped High-Speed Steel

Steel

Aluminum Titanium Nitride (AlTiN) Coated

Carbide Tipped

Titanium Aluminum Nitride (TiAlN) Coated

Titanium Aluminum Silicon Nitride (TiAlSiN) Coated

Titanium Carbon Nitride (TiCN) Coated

Titanium Nitride (TiN) Coated

Uncoated

0.04"

1"

1 1/16"

1 1/8"

1 5/16"

1 3/4"

1 7/8"

2"

2 1/2"

2 7/8"

2 15/16"

3"

3 3/4"

45°

60°

Compliant

Not Compliant

Compliant

Not Compliant

EAR99

Exempt

0°

20°

30°

36° to 38°

37° to 39°

38°

41° to 45°

1/32" to 1/8"

3/64" to 1/4"

1/8" to 1/2"

3/16" to 3/4"

1/4" to 3/4"

1/4" to 1"

3/8" to 1 1/2"

1/2" to 1 3/4"

7/8" to 2"

1" to 3"

4

6

5/16"-24

3/8"-24

1/2"-20

3/4"-16

1"-14

1 1/4"-12

0.875"

1"

1.125"

1.25"

1.375"

1 1/2"

1.625"

1 3/4"

2.125"

2.25"

2.375"

3.125"