Carbide Bur Set Cut Type Double Head Shape Ball Cylinder Oval Head Diameter - Maximum 1/2 in Head Diameter - Minimum 1/4 in Number of Pieces 9 Primary Material Application Brass Bronze Carbon Steel Cast Iron Copper Nickel Stainless Steel Steel Titanium Trade Number SB-1 SB-3 SB-5 SD-1 SD-3 SD-5 SE-1 SE-3 SE-5 End Type 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