This is a 3/4in AF 12-point socket with a 1/2in square drive, designed for removing and tightening 3/4 inch across-flats fasteners in confined spaces and high-torque applications. Its 12-point profile allows engagement with hex heads in twice the positions of a 6‑point socket, making it easier to work where swing clearance is limited; the 1/2in drive makes it suitable for use with ratchets, breaker bars and many torque wrenches used in workshop and site environments.

The socket is manufactured from chrome vanadium (Cr‑V) steel that has been drop-forged, heat-treated and tempered to give durable service life under repeated impact and torque. A bright chrome plated finish provides corrosion resistance and eases cleaning after use. The socket conforms to recognised DIN/ISO dimensional standards for hand sockets and is compatible with common BS fastener profiles, ensuring reliable fit on standard imperial hex bolts and nuts. Being a 12‑point design, it engages on the flats rather than the corners, reducing the risk of rounding on damaged fasteners.

Typical applications include vehicle maintenance and repair, agricultural and plant machinery service, general mechanical and maintenance workshops, and construction or utilities work where imperial fasteners are still used. The 1/2in drive size delivers a balance between torque capacity and manoeuvrability, making this socket suitable for medium to heavy duty tasks such as suspension work, axle and gearbox maintenance, and industrial equipment servicing.

Key benefits are straightforward: the Cr‑V tool steel offers strength and resistance to wear; the chrome finish protects against corrosion; the 12‑point geometry improves accessibility on tight joints; and the standard 1/2in drive ensures compatibility with a wide range of hand tools and torque equipment. For torque-critical applications, use with a calibrated torque wrench and observe manufacturer torque limits for the fastener and tool.

Duchy Fasteners stocks this socket in single pieces and bulk packs, and carries a comprehensive range of complementary sockets and accessories across both imperial and metric sizes; contact us for alternative sizes, sets or bespoke pack quantities.