Carbide Bur End Type Radius Cut Type Single Shank Dia 1/4 in Head Dia 1/4 in Head Length 5/8 in Included Angle Not Applicable Overall Length 2 in Trade Number SF-1 Primary Material Application Cast Iron Ferrous Metals Non-Ferrous Metals Steel Head Shape Tree Operating Speed - Maximum 70 000 RPM List Number 1848 System of Measurement Inch Coating Bright (Uncoated) Head Material Carbide Shank Material Solid Carbide