Diablo Demo Demon Spade Bits provide one of the most durable, effortless, and longest lasting hole drilling solutions on the market for nail-embedded wood. The DEMO-Edge dual cutting edges coupled with a self-feeding Dura-Tip power through nail hits for a smooth drilling experience and up to 60X longer life. An optimized curved paddle design enhances the chip evacuation process for more holes per charge. This range is Impact Strong for increased shank stability and durability in cordless and corded impact and drill drivers. Includes (1) of each bit: 1/2 In., 5/8 In., 3/4 In., 7/8 In., 1 In., and 1-1/4 In. x 6 In.