JAM-FREE Performance, Dual-flute design provides greater speed and control Up to 2X faster - optimized for cordless drills in high speed Rapid Strike tip - creates fast, accurate starts and generates less heat 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 for more productivity Laser-engraved reference marks easily stop on any hole size 3-Flat secure-grip shanks reduce bit slippage in the chuck
