ATA SGSPRO Carbide Burr, Imperial, Series: Universal SE, Radius, 1/4 in Head Dia, 3/8 in Length of Cut, 2 in Overall Length, Oval Head Shape, Single Cut Type, 1/4 in Shank Dia, Solid Carbide Head, Applicable Materials: Non-Hardened Steel, Stainless Steel, Nickel, Cobalt, Titanium, Brass, Copper, Zinc and Cast Iron, SE-1 Industry Specification