Drill America Tungsten Carbide 5 16 in Cutting Bit Accessory Faucet Repair Kit Fast Warm Up: Heats towels in Item Weight:.625 Fast Warm Up: Heats towels in about 20 minutes for cozy comfort after showers Optional shelf retainers can prevent the shelves from coming out unless you want them to perfect in Assisted Living 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 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 Diameter Measurement 5 16 in For Use on Drywall No Type Bur For Use on Plastic Yes Application Cutting