Morse WSAB181250 Auger Drill Bit with 1-1/4-Inch Diameter and 18-Inch Long Self-feed screw point for effortless boring Double flute design for fast chip removal and less cleaning of bit Resharpendable edge allows for quick touch ups to maintain edge and life of bit 7/16-Inch quick change shank allows for use with quick change chuck For use on wood and nail-embedded wood