Carbide Bur End Type Radius Cut Type Double Shank Dia 1/4 in Head Dia 1/2 in Head Length 1 1/4 in Included Angle 14 Degrees Overall Length 3 1/4 in Trade Number SL-5RA Primary Material Application Ferrous Metals Non-Ferrous Metals Head Shape Cone Operating Speed - Maximum 28 000 RPM System of Measurement Inch Coating Bright (Uncoated) Head Material Carbide Shank Material Steel