DRIVEN DESIGN: Provides 50X life over standard bits, with a torsion zone built to last, hardened surface and precision tip PRECISION-MILLED BIT TIPS: Deliver a better fit and less cam-out TORSION ZONE: Built to last, with a new tapered design, it absorbs the torque peaks of impact drivers to avoid breakage HEAT-TREATED BIT MANUFACTURING: Provides more durable bits IMPACT-RATED INTERFACE: Made to fit 1/4 In. hex impact drivers