Cylinder Bur Sb, Double Cut, Shank Dia. 1/4 In, Head Dia. 5/16 In, Length Of Cut 3/4 In, Overall Length 2-1/2 In, Trade Number Sb-2, Abrading Application High-Temperature Alloys And Cast Iron, Stainless Steel, Steel, End Type Flat End, For Tool Type Die Grinders, Straight Grinders, Rotary Power Tools, Head Material Carbide