Carbide Bur Pointed Tree Shank Size 1/8 In. Cutting Edge Type Double Cut Overall Length 1 1/2 In. Length of Cut 1/2 In. Cutter Dia 3/16 In. Max RPM 30000 To 40000 Shank Material Hardened Steel Trade Number SG-53 Application For Steel Stainless Steel High-Temp Alloys And Cast Iron