Carbide Bur End Type Pointed Cut Type Double Shank Dia 1/4 in Head Dia 1/2 in Head Length 7/8 in Included Angle 28 Degrees Overall Length 2 3/4 in Trade Number SM-5 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