Flame Bur SH Cut Type Double Shank Dia 1/4 in Head Dia 5/8 in Head Length 1 7/16 in Included Angle Not Applicable Overall Length 2 in Trade Number SH-6 Head Shape Flame Operating Speed - Maximum 40 000 RPM List Number 851 Coating Bright (Uncoated) Head Material Carbide Shank Material Hardened Steel