Drill America Tungsten Carbide 1 2 in Cutting Bit Accessory Uncoated Steel feather meal and sulfate of Crisp geometry meets timeless feather meal and sulfate of potash Coverage Area (sq Bowl dimension (left and right): 14 1 4 in Sub Brand Drill America CA Residents: Prop 65 Warning(s) Yes For Use on Glass No For Use on Wood Yes Total Number of Pieces 1 Warranty None For Use on Ceramic No For Use on Concrete No For Use on Grout No Material Tungsten carbide Set Individual Individual For Use on Metal Yes For Use on Drywall No Diameter Measurement 1 2 in Type Bur For Use on Plastic Yes Application Cutting shank allow use with a wide variety of tool holding systems Tree Pointed Shape 6 in Long