Carbide Bur, End Type Flat, 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 SB-3, Primary Material Application Cast Iron, Stainless Steel, Steel, Head Shape Cylinder, 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