General description This is a comprehensive, professional-quality set of 1/4" screwdriver bits made from chrome vanadium steel, hardened and tempered for durability. The set includes a variety of screwdriver bits and accessories, all stored in a heavy-duty case with secure plastic inlay. The bit holder features a quick release collet for easy bit changes, making it suitable for a wide range of DIY and home improvement tasks. Technical specifications Material: Chrome vanadium steel Finish: Shot blast for increased durability Bit sizes: Various lengths and types including flat, Phillips, Pozidriv, Torx, Hex, Square, Tamper, Butterfly, Spline, Wing, and Tri Wing Includes adapters and bit holders for versatile use Compatibility and accessories Compatible with standard 1/4" drive tools Includes adapters for hex and square drives Bit holders: magnetic, quick change, SDS plus quick change Installation Insert the desired bit into the quick release collet of the bit holder Secure the bit by