Tree Bur SF End Type Radius Cut Type Single Shank Dia 1/4 in Head Dia 1/2 in Head Length 1 in Included Angle Not Applicable Overall Length 2 in Trade Number SF-5 Head Shape Tree Operating Speed - Maximum 50 000 RPM List Number 903 Coating Bright (Uncoated) Head Material Carbide Shank Material Hardened Steel