Greenlee 66PT-1-1/4 Nail Eater Extreme Auger Bit, 1-1/4-Inch Improved cutting edge provides 30 Percent longer life span Self-feeding screw point draws bit through wood Unique patented design cutting angle, smoother starts, reduced cutting loads Overall length 18-Inch, twist length of 15-Inch Made of super tough, heat-treated steel and cuts through nails and provides longer life