Carbide Bur Set Cut Type Aluminum Head Shape Ball Cone Cylinder Tree Head Diameter - Maximum 1/2 in Head Diameter - Minimum 1/4 in Number of Pieces 12 Primary Material Application Zinc Trade Number SA-1NF SA-3NF SA-5NF SB-5NF SD-1NF SD-3NF SD-5NF SF-1NF SF-3NF SF-5NF SL-3NF SL-4NF End Type Flat Radius System of Measurement Inch Head Dia 1/4 in 3/8 in 1/2 in Coating Bright (Uncoated) Head Material Carbide Head Material Grade C2 Submicron Includes Rosewood Box