IRWIN 1890761 Flexible Installer Drill Bit with Auger Tip, 3/8-Inch Shank, 72
Hole in flute for easy wire pulling through walls, ceilings and floors
3-flatted shank prevents slipping in drill chuck and includes hole for wire pulling
Tapered flute for faster chip ejection, less binding, and smoother drilling
Screw Tip: Screw tip with aggressive pitch delivers easy starts and fast drilling
