The Bahco 66IM/10C-1 is a heavy-duty torsion screwdriver bit set designed for professional use with impact drivers. This 10-piece set delivers enhanced durability through specialised torsion zone technology that distributes stress concentration, absorbing torque peaks to prevent premature wear and extend working life. Each bit is manufactured from high-performance alloy steel with a manganese phosphate finish for superior strength and corrosion resistance. The 50mm length provides excellent reach into recessed fixings whilst maintaining robust performance. Conforming to DIN 3126, ISO 1173, style E 6.3 standards, these impact-rated bits are engineered to withstand the demanding conditions encountered by electricians, carpenters, and general contractors. The set includes the most commonly used bit profiles for everyday applications, covering Phillips, Pozidriv, and TORX fasteners. Supplied on a practical soft plastic holder with integrated safety lock belt clip, the bits remain organised and accessible on site, ideal for rapid bit changes during installation work or general construction tasks. Features and Benefits: • Torsion zone technology absorbs impact peaks for extended service life • High-performance alloy steel construction with protective manganese phosphate finish • Impact driver compatible for use with power tools • Belt clip holder keeps bits organised and accessible on site • Conforms to DIN 3126, ISO 1173, style E 6.3 standards Contains: 3 x 50mm Phillips Bits: PH2(x2) and PH3 3 x 50mm Pozidriv Bits: PZ2(x2) and PZ3 4 x 50mm TORX® Bits: TX20, TX25(x2) and TX30 Specifications: Head Type: Mixed Set Pack Qty.: 10 Length (mm): 50