Endmill Size Chart

Size Decimal (inch) Metric (mm) Type
1/640.01560.40Fractional
2/640.03120.79Fractional
3/640.04691.19Fractional
4/640.06251.59Fractional
5/640.07811.98Fractional
6/640.09382.38Fractional
7/640.10942.78Fractional
8/640.12503.17Fractional
9/640.14063.57Fractional
10/640.15623.97Fractional
11/640.17194.37Fractional
12/640.18754.76Fractional
13/640.20315.16Fractional
14/640.21885.56Fractional
15/640.23445.95Fractional
16/640.25006.35Fractional
17/640.26566.75Fractional
18/640.28127.14Fractional
19/640.29697.54Fractional
20/640.31257.94Fractional
21/640.32818.33Fractional
22/640.34388.73Fractional
23/640.35949.13Fractional
24/640.37509.52Fractional
25/640.39069.92Fractional
26/640.406210.32Fractional
27/640.421910.72Fractional
28/640.437511.11Fractional
29/640.453111.51Fractional
30/640.468811.91Fractional
31/640.484412.30Fractional
32/640.500012.70Fractional
33/640.515613.10Fractional
34/640.531213.49Fractional
35/640.546913.89Fractional
36/640.562514.29Fractional
37/640.578114.68Fractional
38/640.593815.08Fractional
39/640.609415.48Fractional
40/640.625015.88Fractional
41/640.640616.27Fractional
42/640.656216.67Fractional
43/640.671917.07Fractional
44/640.687517.46Fractional
45/640.703117.86Fractional
46/640.718818.26Fractional
47/640.734418.65Fractional
48/640.750019.05Fractional
49/640.765619.45Fractional
50/640.781219.84Fractional
51/640.796920.24Fractional
52/640.812520.64Fractional
53/640.828121.03Fractional
54/640.843821.43Fractional
55/640.859421.83Fractional
56/640.875022.22Fractional
57/640.890622.62Fractional
58/640.906223.02Fractional
59/640.921923.42Fractional
60/640.937523.81Fractional
61/640.953124.21Fractional
62/640.968824.61Fractional
63/640.984425.00Fractional
11.000025.40Fractional
0.0156"0.01560.40Decimal
0.0312"0.03120.79Decimal
0.0469"0.04691.19Decimal
0.0625"0.06251.59Decimal
0.0781"0.07811.98Decimal
0.0938"0.09382.38Decimal
0.1094"0.10942.78Decimal
0.1250"0.12503.17Decimal
0.1406"0.14063.57Decimal
0.1562"0.15623.97Decimal
0.1719"0.17194.37Decimal
0.1875"0.18754.76Decimal
0.2031"0.20315.16Decimal
0.2188"0.21885.56Decimal
0.2344"0.23445.95Decimal
0.2500"0.25006.35Decimal
0.2656"0.26566.75Decimal
0.2812"0.28127.14Decimal
0.2969"0.29697.54Decimal
0.3125"0.31257.94Decimal
0.3281"0.32818.33Decimal
0.3438"0.34388.73Decimal
0.3594"0.35949.13Decimal
0.3750"0.37509.52Decimal
0.3906"0.39069.92Decimal
0.4062"0.406210.32Decimal
0.4219"0.421910.72Decimal
0.4375"0.437511.11Decimal
0.4531"0.453111.51Decimal
0.4688"0.468811.91Decimal
0.4844"0.484412.30Decimal
0.5000"0.500012.70Decimal
0.5156"0.515613.10Decimal
0.5312"0.531213.49Decimal
0.5469"0.546913.89Decimal
0.5625"0.562514.29Decimal
0.5781"0.578114.68Decimal
0.5938"0.593815.08Decimal
0.6094"0.609415.48Decimal
0.6250"0.625015.88Decimal
0.6406"0.640616.27Decimal
0.6562"0.656216.67Decimal
0.6719"0.671917.07Decimal
0.6875"0.687517.46Decimal
0.7031"0.703117.86Decimal
0.7188"0.718818.26Decimal
0.7344"0.734418.65Decimal
0.7500"0.750019.05Decimal
0.7656"0.765619.45Decimal
0.7812"0.781219.84Decimal
0.7969"0.796920.24Decimal
0.8125"0.812520.64Decimal
0.8281"0.828121.03Decimal
0.8438"0.843821.43Decimal
0.8594"0.859421.83Decimal
0.8750"0.875022.22Decimal
0.8906"0.890622.62Decimal
0.9062"0.906223.02Decimal
0.9219"0.921923.42Decimal
0.9375"0.937523.81Decimal
0.9531"0.953124.21Decimal
0.9688"0.968824.61Decimal
0.9844"0.984425.00Decimal
1.0000"1.000025.40Decimal
0.1 mm0.00390.10Metric
0.2 mm0.00790.20Metric
0.3 mm0.01180.30Metric
0.4 mm0.01570.40Metric
0.5 mm0.01970.50Metric
0.6 mm0.02360.60Metric
0.7 mm0.02760.70Metric
0.8 mm0.03150.80Metric
0.9 mm0.03540.90Metric
1.0 mm0.03941.00Metric
1.1 mm0.04331.10Metric
1.2 mm0.04721.20Metric
1.3 mm0.05121.30Metric
1.4 mm0.05511.40Metric
1.5 mm0.05911.50Metric
1.6 mm0.06301.60Metric
1.7 mm0.06691.70Metric
1.8 mm0.07091.80Metric
1.9 mm0.07481.90Metric
2.0 mm0.07872.00Metric
2.1 mm0.08272.10Metric
2.2 mm0.08662.20Metric
2.3 mm0.09062.30Metric
2.4 mm0.09452.40Metric
2.5 mm0.09842.50Metric
2.6 mm0.10242.60Metric
2.7 mm0.10632.70Metric
2.8 mm0.11022.80Metric
2.9 mm0.11422.90Metric
3.0 mm0.11813.00Metric
3.1 mm0.12203.10Metric
3.2 mm0.12603.20Metric
3.3 mm0.12993.30Metric
3.4 mm0.13393.40Metric
3.5 mm0.13783.50Metric
3.6 mm0.14173.60Metric
3.7 mm0.14573.70Metric
3.8 mm0.14963.80Metric
3.9 mm0.15353.90Metric
4.0 mm0.15754.00Metric
4.1 mm0.16144.10Metric
4.2 mm0.16544.20Metric
4.3 mm0.16934.30Metric
4.4 mm0.17324.40Metric
4.5 mm0.17724.50Metric
4.6 mm0.18114.60Metric
4.7 mm0.18504.70Metric
4.8 mm0.18904.80Metric
4.9 mm0.19294.90Metric
5.0 mm0.19695.00Metric
5.1 mm0.20085.10Metric
5.2 mm0.20475.20Metric
5.3 mm0.20875.30Metric
5.4 mm0.21265.40Metric
5.5 mm0.21655.50Metric
5.6 mm0.22055.60Metric
5.7 mm0.22445.70Metric
5.8 mm0.22835.80Metric
5.9 mm0.23235.90Metric
6.0 mm0.23626.00Metric
6.1 mm0.24026.10Metric
6.2 mm0.24416.20Metric
6.3 mm0.24806.30Metric
6.4 mm0.25206.40Metric
6.5 mm0.25596.50Metric
6.6 mm0.25986.60Metric
6.7 mm0.26386.70Metric
6.8 mm0.26776.80Metric
6.9 mm0.27176.90Metric
7.0 mm0.27567.00Metric
7.1 mm0.27957.10Metric
7.2 mm0.28357.20Metric
7.3 mm0.28747.30Metric
7.4 mm0.29137.40Metric
7.5 mm0.29537.50Metric
7.6 mm0.29927.60Metric
7.7 mm0.30317.70Metric
7.8 mm0.30717.80Metric
7.9 mm0.31107.90Metric
8.0 mm0.31508.00Metric
8.1 mm0.31898.10Metric
8.2 mm0.32288.20Metric
8.3 mm0.32688.30Metric
8.4 mm0.33078.40Metric
8.5 mm0.33468.50Metric
8.6 mm0.33868.60Metric
8.7 mm0.34258.70Metric
8.8 mm0.34658.80Metric
8.9 mm0.35048.90Metric
9.0 mm0.35439.00Metric
9.1 mm0.35839.10Metric
9.2 mm0.36229.20Metric
9.3 mm0.36619.30Metric
9.4 mm0.37019.40Metric
9.5 mm0.37409.50Metric
9.6 mm0.37809.60Metric
9.7 mm0.38199.70Metric
9.8 mm0.38589.80Metric
9.9 mm0.38989.90Metric
10.0 mm0.393710.00Metric
10.1 mm0.397610.10Metric
10.2 mm0.401610.20Metric
10.3 mm0.405510.30Metric
10.4 mm0.409410.40Metric
10.5 mm0.413410.50Metric
10.6 mm0.417310.60Metric
10.7 mm0.421310.70Metric
10.8 mm0.425210.80Metric
10.9 mm0.429110.90Metric
11.0 mm0.433111.00Metric
11.1 mm0.437011.10Metric
11.2 mm0.440911.20Metric
11.3 mm0.444911.30Metric
11.4 mm0.448811.40Metric
11.5 mm0.452811.50Metric
11.6 mm0.456711.60Metric
11.7 mm0.460611.70Metric
11.8 mm0.464611.80Metric
11.9 mm0.468511.90Metric
12.0 mm0.472412.00Metric
12.1 mm0.476412.10Metric
12.2 mm0.480312.20Metric
12.3 mm0.484312.30Metric
12.4 mm0.488212.40Metric
12.5 mm0.492112.50Metric
12.6 mm0.496112.60Metric
12.7 mm0.500012.70Metric
12.8 mm0.503912.80Metric
12.9 mm0.507912.90Metric
13.0 mm0.511813.00Metric
13.1 mm0.515713.10Metric
13.2 mm0.519713.20Metric
13.3 mm0.523613.30Metric
13.4 mm0.527613.40Metric
13.5 mm0.531513.50Metric
13.6 mm0.535413.60Metric
13.7 mm0.539413.70Metric
13.8 mm0.543313.80Metric
13.9 mm0.547213.90Metric
14.0 mm0.551214.00Metric
14.1 mm0.555114.10Metric
14.2 mm0.559114.20Metric
14.3 mm0.563014.30Metric
14.4 mm0.566914.40Metric
14.5 mm0.570914.50Metric
14.6 mm0.574814.60Metric
14.7 mm0.578714.70Metric
14.8 mm0.582714.80Metric
14.9 mm0.586614.90Metric
15.0 mm0.590615.00Metric
15.1 mm0.594515.10Metric
15.2 mm0.598415.20Metric
15.3 mm0.602415.30Metric
15.4 mm0.606315.40Metric
15.5 mm0.610215.50Metric
15.6 mm0.614215.60Metric
15.7 mm0.618115.70Metric
15.8 mm0.622015.80Metric
15.9 mm0.626015.90Metric
16.0 mm0.629916.00Metric
16.1 mm0.633916.10Metric
16.2 mm0.637816.20Metric
16.3 mm0.641716.30Metric
16.4 mm0.645716.40Metric
16.5 mm0.649616.50Metric
16.6 mm0.653516.60Metric
16.7 mm0.657516.70Metric
16.8 mm0.661416.80Metric
16.9 mm0.665416.90Metric
17.0 mm0.669317.00Metric
17.1 mm0.673217.10Metric
17.2 mm0.677217.20Metric
17.3 mm0.681117.30Metric
17.4 mm0.685017.40Metric
17.5 mm0.689017.50Metric
17.6 mm0.692917.60Metric
17.7 mm0.696917.70Metric
17.8 mm0.700817.80Metric
17.9 mm0.704717.90Metric
18.0 mm0.708718.00Metric
18.1 mm0.712618.10Metric
18.2 mm0.716518.20Metric
18.3 mm0.720518.30Metric
18.4 mm0.724418.40Metric
18.5 mm0.728318.50Metric
18.6 mm0.732318.60Metric
18.7 mm0.736218.70Metric
18.8 mm0.740218.80Metric
18.9 mm0.744118.90Metric
19.0 mm0.748019.00Metric
19.1 mm0.752019.10Metric
19.2 mm0.755919.20Metric
19.3 mm0.759819.30Metric
19.4 mm0.763819.40Metric
19.5 mm0.767719.50Metric
19.6 mm0.771719.60Metric
19.7 mm0.775619.70Metric
19.8 mm0.779519.80Metric
19.9 mm0.783519.90Metric
20.0 mm0.787420.00Metric
0.1 mm0.00390.10Micro
0.2 mm0.00790.20Micro
0.3 mm0.01180.30Micro
0.4 mm0.01570.40Micro
0.5 mm0.01970.50Micro
0.250"0.25006.35Roughing
0.375"0.37509.52Roughing
0.500"0.500012.70Roughing
0.625"0.625015.88Roughing
0.750"0.750019.05Roughing
1.000"1.000025.40Roughing
6 mm0.23626.00Roughing
8 mm0.31508.00Roughing
10 mm0.393710.00Roughing
12 mm0.472412.00Roughing
16 mm0.629916.00Roughing
20 mm0.787420.00Roughing
0.1250"0.12503.17LongReach
0.1875"0.18754.76LongReach
0.2500"0.25006.35LongReach
0.3750"0.37509.52LongReach
0.5000"0.500012.70LongReach
4 mm0.15754.00LongReach
6 mm0.23626.00LongReach
8 mm0.31508.00LongReach
10 mm0.393710.00LongReach
12 mm0.472412.00LongReach