Carbide Bur, End Type Radius, Type Double, Shank Dia. 1/4 in, Head Dia. 5/16 in, Head Length 7/8 in, Included Angle 14 Degrees , Overall Length 2 3/4 in, Trade Number SL-2, Primary Material Application Cast Iron, Stainless Steel, Steel, Head Shape Cone, Shank Length 1 3/4 in, Operating Speed - Maximum 40,000 RPM, System of Measurement Inch, Coating Bright (Uncoated), Compatible Tool Type Die Grinder, Rotary Power Tool, Straight Grinder, Head Material Carbide, Head Material Grade YG7