Flame Bur SH, Cut Type Single, Shank Dia. 1/4 in, Head Dia. 5/16 in, Head Length 3/4 in, Included Angle Not Applicable, Overall Length 6 3/4 in, Trade Number SH-2L6, Head Shape Flame, Operating Speed - Maximum 68,000 RPM, Coating Bright (Uncoated), Head Material Carbide, Shank Material Steel