Cylinder Bur SC End Type Radius Cut Type Double Shank Dia 1/4 in Head Dia 1/2 in Head Length 1 in Included Angle Not Applicable Overall Length 6 in Trade Number SC-5L6 Head Shape Cylinder Operating Speed - Maximum 50 000 RPM List Number 862 Coating Bright (Uncoated) Head Material Carbide Shank Material Hardened Steel