Inverted Cone Bur End Type Flat Cut Type Single Shank Dia 3 mm Head Dia 5 mm Head Length 5 mm Included Angle 10 Degrees Overall Length 50 mm Trade Number SN-53 Head Shape Inverted Cone Operating Speed - Maximum 75 000 RPM List Number 920 Coating Bright (Uncoated) Head Material Carbide Shank Material Carbide