Cylinder Bur SA, Type Diamond, Shank Dia. 1/4 in, Head Dia. 3/4 in, Head Length 3/4 in, Overall Length 2 in, Trade Number SA-16, Head Shape Cylinder, Operating Speed - Maximum 30,000 RPM, List Number 801, Coating Bright (Uncoated), Head Material Carbide, Shank Material Hardened Steel