Carbide Bur Set Cut Type Aluminum Head Shape Ball Cone Cylinder Oval Tree Head Diameter - Maximum 3/8 in Head Diameter - Minimum 1/2 in Number of Pieces 8 Primary Material Application Zinc Trade Number SA-5NF SB-5NF SC-5NF SD-5NF SE-5NF SF-5NF SL-3NF SL-4NF End Type Flat Radius System of Measurement Inch Head Dia 3/8 in 1/2 in Coating Bright (Uncoated) Head Material Carbide Head Material Grade C2 Submicron Includes Rosewood Box Operating Speed - Maximum 60 000 RPM