Three-flat Secure-Grip shanks - reduces bit slippage in the chuck Jam-free performance - dual-flute design provides greater speed and control Laser-engraved reference marks - easily stop on any hole size Rapid Strike tip - creates fast, accurate starts and generates less heat Up to 2X faster - optimized for cordless drills in high speed Up to 4X longer bit life - optimized geometry with black oxide coating to cut faster and produce less heat Up to 50 Percent more holes per battery charge, Greater user productivity
