IRWIN WeldTec 1 2 in Woodboring Auger Drill Bit VCT Tile one piece aluminum 5 blade fan is one piece aluminum 5 blade fan is pitched for maximum air flow to keep your living area cooler Adjustable material stop Aggressive screw pitch Patent pending welded cutting edge Wide flutes 3 8 In quick change impact shank Series Name N A Sub Brand WeldTec Bit Type Auger bit Bit Length 17 in Shank Size 3 8 in Shank Type Hex Material High speed steel Case Type N A (no case) Quick Change Yes For Use With Power tool For Use on Metal No For Use on Wood Yes Warranty None Set Individual Individual Package Quantity 1 Bit Diameter (Inches) 3 8 in CA Residents: Prop 65 Warning(s) Yes Brand Model Compatibility All