Cone Bur, End Type Pointed, Cut Type Double, Shank Dia. 1/4 in, Head Dia. 1/4 in, Head Length 1/2 in, Included Angle 22 Degrees, Overall Length 2 in, Trade Number SM-1, Head Shape Cone, Operating Speed - Maximum 70, 000 RPM, List Number 805, Coating Bright (Uncoated), Head Material Carbide, Shank Material Carbide