Carbide Bur, End Type Radius, Cut Type Double, Shank Dia. 1/4 in, Head Dia. 3/8 in, Head Length 3/4 in, Included Angle Not Applicable, Overall Length 2 1/2 in, Trade Number SF-3, Primary Material Application Brass, Bronze, Carbon Steel, Cast Iron, Copper, Stainless Steel, Titanium, Head Shape Tree, Operating Speed - Maximum 66, 000 RPM, List Number 1848, System of Measurement Inch, Coating Bright (Uncoated), Head Material Carbide, Shank Material Hardened Steel