Hex Driver Bit – Durable ChromeVanadium Steel Construction Precisionengineered hex driver bit designed for reliable fastening and loosening of 8mm (5/16 inch) hex socket screws. Made from strength chromevanadium steel for outstanding durability, wear resistance, and long service life. 1/4 inch (6.35mm) hex shank ensures easy and secure fit into standard power drills, impact drivers, and manual drivers. Compact design with an overall size of 12mm diameter and 41mm length, delivering control in tight spaces. Lightweight at 167g while offering solid performance for both professional and DIY tasks. Gray finish for a clean, professional appearance and easy identification among your tools. Ideal Applications: for assembly or of furniture, machinery, and equipment requiring 8mm hex fasteners. Suitable for automotive maintenance, such as tightening or loosening bolts in tight engine compartments. Handy for construction or installation projects where secure hex connections are essential. This hex driver bit delivers a precise fit, minimizes slipping, and ensures efficient torque transfer, helping you work faster and with improved accuracy. Built to perform under frequent use, it is a practical addition to any toolkit.