Cone Bur End Type Pointed Cut Type Double Shank Dia 6 mm Head Dia 12 mm Head Length 60 mm Included Angle 60 Degrees Overall Length 50 mm Trade Number SJ-5 Head Shape Cone Operating Speed - Maximum 50 000 RPM List Number 850 Coating Bright (Uncoated) Head Material Carbide Shank Material Hardened Steel