Cone Bur End Type Radius Cut Type Double Shank Dia 1/4 in Head Dia 5/8 in Head Length 1 5/16 in Included Angle 14 Degrees Overall Length 3 3/16 in Trade Number SL-6 Primary Material Application Cast Iron Stainless Steel Steel Head Shape Cone Shank Length 1 3/4 in Operating Speed - Maximum 25 000 RPM Compatible Tool Type Die Grinder Rotary Power Tool Straight Grinder Head Material Carbide Head Material Grade YG7 Shank Material Steel