SGS Pro® Carbide Burr, Metric, Series: Universal SE, 3 mm Head Dia, 5.5 mm Length of Cut, 50 mm Overall Length, Oval Head Shape, Single Cut Type, 3 mm Shank Dia, Solid Carbide Head, Applicable Materials: Non-Hardened Steel, Stainless Steel, Nickel, Cobalt, Titanium, Brass, Copper, Zinc and Cast Iron, SE-41M Industry Specification