Inch

Metric

Wire Gauge

Letter Size

1"

1 1/4"

1 1/2"

3 mm

4 mm

4.8 mm

5 mm

6 mm

6.35 mm

7 mm

8 mm

9 mm

10 mm

12 mm

13 mm

14 mm

16 mm

18 mm

20 mm

22 mm

25 mm

Carbide

Carbide-Tipped Steel

Steel

Aluminum Chromium Nitride (AlCrN) Coated

Aluminum Non-Ferrous (ANF) Coated

Aluminum Titanium Chromium Nitride (AlTiCrN) Coated

Aluminum Titanium Nitride (AlTiN) Coated

Black Oxide

Carbide Tipped

Diamond Coated

Diamondlike Carbon (DLC) Coated

Titanium Aluminum Nitride (TiAlN) Coated

Titanium Aluminum Silicon Nitride (TiAlSiN) Coated

Titanium Carbon Nitride (TiCN) Coated

Titanium Diboride (TiB2) Coated

Titanium Nitride (TiN) Coated

Uncoated

EAR99

Exempt

Compliant

Not Compliant

Compliant

Compliant with Exemptions

Not Compliant

Intersecting

Spiral

Straight

0°

10° to 43°

12°

15°

15° to 55°

20°

28°

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°

40° to 43°

41°

41° to 45°

45°

0.004"

0.006"

0.008"

0.01"

0.012"

0.013"

0.014"

0.015"

0.016"

0.02"

0.021"

0.023"

0.024"

0.025"

0.028"

0.03"

0.031"

0.045"

0.047"

0.06"

0.062"

0.063"

0.09"

0.12"

0.125"

0.15"

0.19"

0.25"

0.05 mm

0.1 mm

0.15 mm

0.2 mm

0.3 mm

0.5 mm

0.76 mm

1 mm

1.5 mm

2 mm

2.5 mm

3 mm

4 mm

5 mm