The Draper Expert 7 Piece 1/2" Drive Socket Bit Holder and Hex Bit Set delivers professional-grade socket bit solutions for mechanical and assembly work. This comprehensive socket set combines precision-engineered hexagonal bits with a robust square drive holder, making it ideal for applications requiring hex socket access through a torque wrench or ratchet. The hexagonal bits are manufactured from SNCM-V steel, hardened and tempered for exceptional durability, with a shot blasted finish that resists corrosion and wear. Each 30mm bit provides secure engagement with metric hex fasteners across a versatile size range. The 1/2" square drive holder is constructed from chrome vanadium steel, hardened and tempered for strength, then chrome plated to ensure long-term corrosion resistance in demanding workshop environments. This socket bit set is particularly suited to automotive mechanics, machinery maintenance, and assembly tasks where standard sockets cannot reach recessed hex bolts. The combination of six metric sizes from 4mm through to 12mm covers the most commonly encountered hex fasteners in professional and trade applications. Features and Benefits: • SNCM-V steel bits with shot blasted finish for superior wear resistance • Chrome vanadium steel holder with chrome plating for corrosion protection • 1/2" square drive compatible with torque wrenches and standard ratchets • Comprehensive 6-piece metric size range from 4mm to 12mm Contents: 1 x Bit holder 1/2" sq. drive 6 x 30mm hexagonal bits: 4, 5, 6, 8, 10, 12mm