Cutter DiameterShank DiameterFlute LengthOverall Length 1/16 1/8 3/161 1/2 5/64 1/8 1/41 1/2 3/32 1/8 3/81 1/2 7/64 1/8 1/21 1/2 1/8 1/8 1/21 1/2 9/64 3/16 1/22 5/32 3/16 9/162 11/64 3/16 5/82 3/16 3/16 5/82 13/64 1/4 5/82 1/2 7/32 1/4 5/82 1/2 15/64 1/4 5/82 1/2 1/4 1/4 3/42 1/2 17/64 5/16 3/42 1/2 9/32 5/16 3/42 1/2 19/64 5/16 3/42 1/2 5/16 5/16 13/162 1/2 21/64 3/8 7/82 1/2 11/32 3/8 7/82 1/2 23/64 3/8 7/82 1/2 3/8 3/8 7/82 1/2 25/64 7/161 2 3/4 13/32 7/161 2 3/4 27/64 7/161 2 3/4 7/16 7/161 2 3/4 29/64 1/21 3 15/32 1/21 3 31/64 1/21 3 1/2 1/21 3 9/16 9/161 1/4 3 1/2 5/8 5/81 1/4 3 1/2 11/16 3/41 1/2 4 3/4 3/41 1/2 4 7/8 7/81 1/2 4 1 1 1 1/2 4 Milling. General purpose end mill. Used on more difficult to machine materials. Excellent wear resistance and size control.