Drill America 12 Piece Tungsten Carbide Set Cutting Bit Accessory Kit High Pile Carpet ) 4 in Manufacturer Warranty ) 4 in Manufacturer Warranty 15 Year Up to 30% more power vs the DCG414 grinder stainless steel and metals Double cut style for rapid material removal in tough applications Solid carbide tooling provide long life and faster cutting speeds Round 1 4 in Sub Brand Drill America CA Residents: Prop 65 Warning(s) Yes Diameter Measurement Set For Use on Glass No For Use on Wood Yes Warranty None For Use on Ceramic No For Use on Concrete No For Use on Grout No Material Tungsten carbide Set Individual Set Total Number of Pieces 12 For Use on Metal Yes For Use on Drywall No Type Bur For Use on Plastic Yes Application Cutting