Bit kit E-Z BORE® (POP). Seven of the most common E-Z BORE® bits from 1 to 2-9/16 inch. Also includes 5-1/2 inch bit extension, replacement screw points, hex wrench and set screws. Double-blade design for fast, smooth cuts. Dual cutting edges can be re-sharpened for longer bit life. Large, open design won't clog with wood chips. Self-feed tip pulls bit through wood. Outer spur teeth reduce splintering and blowouts. Replaceable tip.