Carbide Bur, Cut Type Single, Head Dia. 1/4 in, Head Length 3/16 in, Included Angle Not Applicable, Overall Length 1 11/16 in, Trade Number SB-51, Primary Material Application Cast Iron, Ferrous Metals, Non-Ferrous Metals, Steel, Head Shape Cylinder, Operating Speed – Maximum 70,000 RPM, Coating Bright (Uncoated), Head Material Carbide, Shank Material Carbide