Carbide Bur End Type Radius Cut Type Double Shank Dia 1/4 in Head Dia 5/16 in Head Length 3/4 in Included Angle Not Applicable Overall Length 2 1/2 in Trade Number SC-2 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