Engineered to be the most durable, best fitting driver bits on the market Optimized Shock Zone geometry is unique for each tip type to provide up to 30X longer life Absorbs 3X more torque versus other impact bits Geometric design provides the shock absorption Proprietary ALLOY76™ steel and heat treat process for maximum strength and durability Forged tips for maximum grip Custom machined tips prevent stripping and reduce wobble Bit holder’s 2-piece construction withstands abuse in impact applications Designed for use in impact drivers or drill drivers