Carbide Bur, End Type Pointed, Cut Type Single, Head Dia. 3/8 in, Head Length 5/8 in, Included Angle 28 Degrees , Overall Length 2 1/2 in, Trade Number SM-4, Primary Material Application Cast Iron, Ferrous Metals, Non-Ferrous Metals, Steel, Head Shape Cone, Operating Speed – Maximum 66,000 RPM, Coating Bright (Uncoated), Head Material Carbide, Shank Material Steel