Cone Bur, End Type Radius, Type Single, Shank Dia. 1/4 in, Head Dia. 3/8 in, Head Length 1 1/16 in, Included Angle 14 Degrees , Overall Length 2 15/16 in, Trade Number SL-3, Primary Material Application Cast Iron, Ferrous Metals, Non-Ferrous Metals, Steel, Head Shape Cone, Shank Length 1 3/4 in, Operating Speed - Maximum 40,000 RPM, Compatible Tool Type Die Grinder, Rotary Power Tool, Straight Grinder, Head Material Carbide, Head Material Grade YG7, Shank Material Steel