Inch

Metric

0.160"

0.189"

0.193"

0.201"

0.224"

0.236"

0.268"

0.295"

0.331"

0.350"

0.402"

0.419"

0.486"

0.498"

0.585"

0.608"

0.705"

0.732"

Carbide

Ceramic Alumina

Cermet

Cubic Boron Nitride

Polycrystalline Diamond

Steel

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"

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"

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

Yes

No

EAR99

Roughing

Medium

Finishing

1

2

3

4

6

8

12

1"

35°

55°

60°

80°

90°

1"

1 1/8"

1 1/4"

1 3/8"

1 1/2"

1 5/8"

1 3/4"

2"

2 1/4"

2 1/2"

1"

0°

5°

7°

11°

15°