Cone Bur, End Type Radius, Type Double, Shank Dia. 1/4 in, Head Dia. 3/8 in, Head Length 1 1/16 in, Included Angle 14 Degrees , Overall Length 2 in, Trade Number SL-3, Head Shape Cone, Operating Speed - Maximum 63,000 RPM, List Number 807, Coating Bright (Uncoated), Head Material Carbide, Shank Material Hardened Steel