This product is a 1 1/8 inch across-flats (AF) 12-point socket designed for use with 1/2 inch square drive tools. Its primary use is to engage and turn hexagonal or 12-point fasteners in workshop, vehicle maintenance and plant-service environments where a robust 1/2in drive tool is required to apply moderate to high torque.

The socket is manufactured from chrome‑vanadium (Cr‑V) alloy steel and is heat treated to provide the toughness and torque resistance expected in professional hand tools. The external finish is bright chrome plating to resist corrosion and ease cleaning. The socket features an internal 12‑point profile (double hex) sized to 1 1/8in AF (approximately 28.6mm) to give multiple engagement positions on fasteners, which is useful in confined spaces. Drive interface is a standard 1/2in square recess compatible with 1/2in ratchets, extensions and torque wrenches; it will accept standard detent ball retaining mechanisms or through‑pin/clip arrangements depending on the accessory used.

The socket is produced to industry dimensional and interchangeability conventions used across DIN, ISO and BS specifications for hand sockets and square drives, ensuring compatibility with other standard 1/2in drive tools and accessories. The 12‑point form allows the socket to fit both 12‑point and 6‑point fasteners in many cases, improving accessibility where rotation is restricted.

Typical applications include automotive repair, commercial vehicle maintenance, agricultural machinery servicing, mechanical assembly and general engineering workshop use. The 1/2in drive and 1 1/8in size are commonly used for wheel nuts, suspension and drivetrain fasteners, as well as larger structural bolts in fabrication and maintenance tasks.

Key benefits are the corrosion resistance afforded by the chrome plating, the strength and fatigue resistance from the Cr‑V material and heat treatment, and broad compatibility with standard 1/2in drive tools and accessories. The 12‑point profile offers increased engagement angles for working in tight positions without compromising grip on appropriate fasteners.

Duchy Fasteners stocks this 1 1/8in AF 12‑point 1/2in drive socket in bulk pack formats and can supply single pieces on request; we also carry a full range of AF and metric sockets across 1/4in, 3/8in, 1/2in and larger drives in a variety of sizes and pack quantities.