Oval Bur SE, End Type Radius, Type Single, Shank Dia. 1/4 in, Head Dia. 3/4 in, Head Length 1 in, Included Angle Not Applicable, Overall Length 2 3/4 in, Trade Number SE-7, Primary Material Application Brass, Bronze, Copper, Nickel, Titanium, Zinc, Head Shape Oval, Shank Length 1 3/4 in, Operating Speed - Maximum 20,000 RPM, Coating Bright (Uncoated), Compatible Tool Type Die Grinder, Rotary Power Tool, Straight Grinder, Head Material Carbide, Head Material Grade YG7, Shank Material Steel