Tree Bur SF End Type Radius Cut Type Double Shank Dia 1/4 in Head Dia 3/4 in Head Length 1 1/4 in Included Angle Not Applicable Overall Length 3 in Trade Number SF-14 Primary Material Application Ferrous Metals Non-Ferrous Metals Stainless Steel Steel Head Shape Tree Shank Length 1 3/4 in Operating Speed - Maximum 20 000 RPM Coating Bright (Uncoated) Compatible Tool Type Die Grinder Rotary Power Tool Straight Grinder Head Material Carbide Head Material Grade YG7