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 that absorbs the torque peaks of impact drivers to avoid breakage. HEAT-TREATED BIT MANUFACTURING: Ensures more durable bits for long-lasting use. IMPACT-RATED INTERFACE: Made to fit 1/4 In. hex impact drivers.