IRWIN 1890758 Flexible Installer Drill Bit with Auger Tip, 9/16-Inch Shank, 54-Inch Length

IRWIN Flexible Installer Bits with Augur Tip feature a Type A tip which combines a screw tip with an aggressive pitch for easy starts and fast drilling with dual cutting spurs for faster, cleaner holes with less breakout. These bits are made with a hole in the flute for easy wire pulling through walls, ceilings and floors. They have a 3-flatted shank to prevent slipping in drill chucks and the shank also includes a hole for wire pulling. The bit is designed with a tapered flute for faster chip ejection which delivers less binding and smoother drilling. Plus, the bits are made from premium high carbon steel for extended drilling life in wood.