Carbide Bur End Type Pointed Cut Type Single Shank Dia 1/4 in Head Dia 1 in Head Length 7/16 in Included Angle 90 Degrees Overall Length 2 3/8 in Trade Number SK-9 Primary Material Application Brass Bronze Copper Ferrous Metals Nickel Titanium Head Shape Cone Operating Speed - Maximum 8 000 RPM System of Measurement Inch Coating Bright (Uncoated) Compatible Tool Type Die Grinder Head Material Carbide Shank Material Steel