Carbide Bur, End Type Radius, Cut Type Aluminum, Shank Dia. 1/4 in, Head Dia. 5/8 in, Head Length 1 in, Included Angle Not Applicable, Overall Length 2 3/4 in, Trade Number SF-6, Head Shape Tree, Operating Speed – Maximum 40,000 RPM, List Number 1848, System of Measurement Inch, Coating Bright (Uncoated), Head Material Carbide, Shank Material Hardened Steel