Cone Bur End Type Pointed Cut Type Double Shank Dia 1/4 in Head Dia 5/8 in Head Length 1 in Included Angle 31 Degrees Overall Length 2 in Trade Number SM-6 Head Shape Cone Operating Speed - Maximum 40 000 RPM List Number 805 Coating Bright (Uncoated) Head Material Carbide Shank Material Hardened Steel