This product is an 18mm 12-point socket with a 1/2" (12.5mm) square drive, designed for use with ratchets, torque wrenches and breaker bars. The 12-point configuration allows multiple engagement positions on hexagonal fasteners, making it particularly useful where access is limited or fine indexing is required. The 1/2" square drive is the common medium/heavy duty size for workshop and industrial use, offering a balance of torque capacity and everyday usability.

Manufactured from chrome‑vanadium steel (Cr‑V) that has been heat treated and tempered, the socket delivers the tensile strength and toughness expected for repeated professional use. The outside is finished in a corrosion‑resistant chrome plating with a polished surface to resist rust and ease cleaning. The socket meets common dimensional and performance expectations for hand sockets in accordance with recognised DIN/ISO/BS tooling practice for interchangeable sockets; it is compatible with standard 1/2" square drive tools and is suitable for use within the torque limits recommended for chrome‑vanadium hand sockets.

Typical applications for an 18mm 12‑point 1/2" drive socket include automotive repair and servicing, light commercial vehicle maintenance, agricultural machinery repair, plant maintenance and general mechanical assembly. The 12‑point design allows location on a hexagon head in twice the positions of a 6‑point socket, which is advantageous on fasteners in cramped engine bays or on assemblies where quick indexing reduces downtime. Use with torque wrenches and breaker bars is common in workshop and service environments.

Key benefits include good corrosion resistance from the chrome finish, robust strength from the Cr‑V material and heat treatment, and broad compatibility with 6‑ and 12‑point fasteners when used correctly. The 1/2" drive size supports higher torque applications than 3/8" drive equivalents, making this socket a versatile workshop staple. Duchy Fasteners stocks a wide range of metric sockets, typically from small sizes through to larger heavy‑duty sockets, available as single items or in sets and packs to suit both professional workshops and DIYers.