General description This is a 28mm (3/4 inch) square drive bi-hexagon socket designed for professional use. It is compatible with various tools and suitable for precise and secure fastening tasks. The socket features a chamfered end for easy nut engagement and a hole for a driving accessory with a locking pin, ensuring secure attachment. Some sizes include a knurled band for improved grip during use. Manufactured from high-quality chrome vanadium steel, it is hardened, tempered, and chrome plated for corrosion resistance. Technical specifications Size: 28mm (3/4 inch) Material: Chrome vanadium steel Finish: Chrome plated for corrosion protection Standards: DIN 3124/ISO 2725 and DIN 3120/ISO 1174 Compatibility and accessories Compatible with standard 3/4 inch drive tools Designed for use with driving accessories that fit the hole for locking pins Installation Insert the socket onto a compatible 3/4 inch drive ratchet or wrench Ensure the locking pin is engaged if using a driving