Ball Bur SD, Cut Type Single, Shank Dia. 3 mm, Head Dia. 1 19/32 mm, Head Length 1 19/32 mm, Included Angle Not Applicable, Overall Length 1.50mm, Trade Number SD-40, Primary Material Application Cast Iron, Non-Ferrous Metals, Steel, Head Shape Ball, Operating Speed – Maximum 100,000 RPM, Coating Bright (Uncoated), Head Material Carbide, Head Material Grade C2 Submicron, Shank Material Carbide