High-quality chrome vanadium sandblasted bits that can withstand more torque, reduce wear-outs, ensure longevity, and durability. Chamfered bit ends insert smoothly into fasteners. Set includes the most common Slotted, Phillips, Tamper-proof Star, non-tamper Star, Tri-wing, Four-wing, Pozi, Square, Spanner, Tamper-proof Hex, and non-tamper Hex.