IRWIN WeldTec 1 2 in Woodboring Auger Drill Bit HardieBacker Variable speed trigger lets you deliver 011358010496280 46 Variable speed trigger lets you deliver just the right amount of power No more wiping off your mirror or using a hairdryer to remove fog 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