Inch

Metric

0.160"

0.189"

0.193"

0.201"

0.202"

0.224"

0.236"

0.252"

0.268"

0.295"

0.318"

0.331"

0.350"

0.383"

0.402"

0.419"

0.486"

0.498"

0.579"

0.585"

0.608"

0.705"

0.732"

0.079"

0.087"

0.094"

0.118"

0.122"

0.145"

0.15"

0.157"

0.161"

0.187"

0.195"

0.197"

0.201"

0.236"

0.252"

0.315"

0.354"

Carbide

Ceramic Alumina

Cermet

Cubic Boron Nitride

Polycrystalline Diamond

Steel

0.002"

0.003"

0.004"

0.005"

0.006"

0.007"

0.008"

0.009"

0.010"

0.011"

0.013"

0.017"

0.020"

0.039"

Aluminum Chromium Nitride (AlCrN) Coated

Aluminum Oxide Coated

Aluminum Titanium Chromium Nitride (AlTiCrN) Coated

Aluminum Titanium Nitride (AlTiN) Coated

Black Oxide

Diamondlike Carbon (DLC) Coated

Nickel Plated

Titanium Aluminum Nitride (TiAlN) Coated

Titanium Aluminum Oxygen Nitride (TiAlON) Coated

Titanium Carbon Nitride (TiCN) Coated

Titanium Diboride (TiB₂) Coated

Titanium Nitride (TiN) Coated

Uncoated

Roughing

Medium

Finishing

1

2

3

4

6

8

12

35°

55°

60°

80°

90°

EAR99

Yes

No

0°

5°

7°

11°

13°

15°

17°

0.084"

0.089"

0.091"

0.095"

0.1"

0.11"

0.13"

0.131"

0.134"

0.15"

0.158"

0.173"

0.203"

0.217"

0.312"

1 3/8"

1"