Carbide Bur End Type Corner Radius Cut Type Double Shank Dia 1/4 in Head Dia 3/8 in Head Length 3/4 in Included Angle Not Applicable Overall Length 2 1/2 in Trade Number SA-3CR Primary Material Application Ferrous Metals Non-Ferrous Metals Head Shape Cylinder Operating Speed - Maximum 37 500 RPM System of Measurement Inch Coating Bright (Uncoated) Head Material Carbide Shank Material Steel