Tree Bur SF End Type Radius Cut Type Single Shank Dia 1/8 in Head Dia 3/16 in Head Length 1/2 in Included Angle Not Applicable Overall Length 1 1/2 in Trade Number SF-53 Head Shape Tree Operating Speed - Maximum 75 000 RPM List Number 920 Coating Bright (Uncoated) Head Material Carbide Shank Material Carbide