Drill America Tungsten Carbide 1 in Cutting Bit Accessory Silverton Oak Flooring DCB240C 4 Ah (80 Watt hour) DCB240C 4 Ah (80 Watt hour) capacity provides extended runtime 2 spade bits 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 1 in 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 Type Bur For Use on Plastic Yes Application Cutting