Lenox Complete Bi-Metal Self-Feed Bit Set – Tool Pass Pro The shank features a 1/2-Inch Hex shank that will work with 1/2-Inch quick change adapters. This bit comes packaged with an extra lead screw and wrench to change the screw., Extreme Durability The High Speed Steel Cutting Edge provides superior durability in nail embedded wood to stay sharper longer. Hole Saw With Extra Screw Lenox 1787512 High Speed Steel Bi-Metal Self-Feed Drill Bit, 1-1/8 Inch 1-1/8 Inch Drill Bit Comes with additional Screw tip and wrench; Extended Length for Deeper cuts. Lenox 1787512 Specifications: Cutting Diameter: 1-1/8 inch; Overall Length: 5 inch... Clean holes and Easy Bit Removal , Fast, Easy Drilling The Lenox Tools 1787512 Bi-Metal Self Feed Bit 1-1/8-Inchis tougher than nails. Tools | Shop Online Andrew Limited Extended Length for Deeper cuts