Carbide Bur End Type Corner Radius Cut Type Double Shank Dia 1/4 in Head Dia 5/8 in Head Length 1 in Included Angle Not Applicable Overall Length 2 3/4 in Trade Number SA-6CR Primary Material Application Ferrous Metals Non-Ferrous Metals Head Shape Cylinder Operating Speed - Maximum 22 500 RPM System of Measurement Inch Coating Bright (Uncoated) Head Material Carbide Shank Material Steel