FeaturesJam-free performance - dual flute design provides greater speed and controlUp to 2x faster - optimized for cordless drills in high speedRapid Strike™ tip - creates fast, accurate starts and generates less heatUp to 4X longer bit life - optimized geometry with black oxide coating to cut faster and produce less heatUp to 50% more holes per battery charge - greater user productivityLaser engraved reference marks - easily stop on any hole size3-flat Secure Grip™ shanks - reduces bit slippage in the chuckFor use on ferrous and non-ferrous materials