Flame Bur SH Cut Type Double Shank Dia 1/4 in Head Dia 3/4 in Head Length 1 5/8 in Included Angle Not Applicable Overall Length 2 in Trade Number SH-7 Head Shape Flame Operating Speed - Maximum 30 000 RPM List Number 851 Coating Bright (Uncoated) Head Material Carbide Shank Material Hardened Steel