This is a 14 mm bi‑hex (12‑point) socket designed for use with any 1/2 inch square drive ratchet, breaker bar or torque wrench. Its primary use is to engage 14 mm hexagonal fasteners where the additional contact points of a bi‑hex profile allow quicker location onto the nut or bolt and easier access in restricted swing angles.

The socket is manufactured from chrome vanadium (Cr‑V) steel and is heat treated for strength and wear resistance. The working end features a 12‑point bi‑hex profile that accepts 14 mm fasteners, while the drive end is a 1/2" female square recess to suit standard 1/2" drive tools. As sockets do not incorporate threaded connections, thread type is not applicable. The surface finish is bright chrome plating, giving good corrosion protection and facilitating cleaning after use. The component is produced to common professional workshop standards (manufactured in accordance with recognised DIN/ISO specifications for hand sockets) to ensure dimensional accuracy and interchangeability with other metric sockets and drives.

Typical applications include automotive maintenance and repair, heavy equipment servicing, industrial machinery assembly and general mechanical and engineering workshops. The bi‑hex design is particularly useful where fine rotational positioning is required or where repeated engagement is needed in confined spaces, for example engine bays, gearboxes or plant maintenance. It is also used across construction, agricultural machinery and fleet servicing where 14 mm fasteners are common.

Key benefits of this socket include the corrosion resistance provided by the chrome finish, the strength and fatigue resistance of heat treated chrome vanadium steel, and the compatibility with the widely used 1/2" drive system and accessories such as extensions and universal joints. The 12‑point profile reduces rounding on slightly worn fasteners and allows engagement every 30 degrees, compared with 60 degrees on 6‑point designs.

Duchy Fasteners stocks this 14 mm bi‑hex 1/2" drive socket across a broad metric range and supplies individual pieces and trade packs; please check our catalogue for available sizes and pack quantities.