Carbide Bur End Type Radius Cut Type Double Shank Dia 1/4 in Head Dia 1/8 in Head Length 3/32 in Included Angle Not Applicable Overall Length 2 in Trade Number SD-11 Primary Material Application Brass Bronze Copper Ferrous Metals Nickel Titanium Head Shape Ball Operating Speed - Maximum 64 000 RPM System of Measurement Inch Coating Bright (Uncoated) Compatible Tool Type Die Grinder Head Material Carbide Shank Material Carbide