Tree Bur SG End Type Pointed Cut Type Single Shank Dia 1/4 in Head Dia 1/2 in Head Length 3/4 in Included Angle Not Applicable Overall Length 2 1/2 in Trade Number SG-13 Primary Material Application Brass Bronze Carbon Steel Cast Iron Copper Nickel Stainless Steel Titanium Zinc Head Shape Tree Shank Length 1 3/4 in Operating Speed - Maximum 40 000 RPM Coating Bright (Uncoated) Compatible Tool Type Die Grinder Rotary Power Tool Straight Grinder Head Material Carbide