Drill America 5 Piece Tungsten Carbide 1 8 in Cutting Bit Accessory Aluminum Sheet Strong Fastener Hold: Good nailing Cabinet Color:Chilled Gray Strong Fastener Hold: Good nailing and screw holding properties reduce splitting 5% (impervious) COF >0 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 Warranty None For Use on Ceramic No Total Number of Pieces 5 For Use on Concrete No For Use on Grout No Material Tungsten carbide Set Individual Individual Diameter Measurement 1 8 in For Use on Metal Yes For Use on Drywall No Type Bur For Use on Plastic Yes Application Cutting