Greenlee 09-03-54B D'VersiBIT Type B Combination with Screw Point Bit, 9/16 by 54-Inch For aggressive chip removal in many types of woods Screw point for easy starting and pulling through wood With screw point removed, this bit can be ground to function like a standard combination bit These flexible steel drill bits are the right tools for installing wire or cable inside existing walls Bends to meet your needs