This is an 18mm deep socket with a 1/2in square drive, designed for accessing nuts and bolts recessed on studs, through bulkheads or in confined assemblies where a standard shallow socket will not reach. The socket is intended for manual workshop use with 1/2in ratchets, torque wrenches, extension bars and breaker bars to deliver accurate tightening and loosening of hex fasteners.

The socket is manufactured from chrome vanadium (Cr‑V) alloy steel that has been heat treated and tempered to provide the toughness and tensile strength required in general maintenance and assembly work. The internal profile is a six‑point (hex) head to give positive engagement with fastener flats and reduce the chance of rounding. The drive is a 1/2in square recess compatible with industry standard 1/2in tools and accessories. The exterior is finished in bright chrome plating which gives corrosion resistance and makes cleaning oil and grease straightforward. The socket is produced to recognised DIN/ISO/BS dimensional standards for hand sockets to ensure fit and interchangeability with other manufacturers’ 1/2in drive tooling.

Typical applications include automotive repair, agricultural machinery maintenance, plant and factory maintenance, mechanical and electrical assembly, and general engineering workshops. The deep length is particularly useful when working on wheel studs, engine components, suspension assemblies and assembly-line fixtures where fasteners sit proud of or are recessed into housings.

Key benefits are reliable corrosion resistance from the chrome finish, robust strength from the Cr‑V construction and heat treatment, and broad compatibility with 1/2in drive ratchets, torque wrenches and extensions. The six‑point profile reduces slippage and protects fastener heads compared with 12‑point designs when higher torque is applied. Note that this product is intended for hand use and is not recommended for pneumatic impact tools.

Duchy Fasteners stocks this item (DR28265) in bulk and single quantities and carries a wide range of metric and imperial socket sizes in 1/4in, 3/8in and 1/2in drives supplied in individual pieces or multi‑pack sets to suit workshop and industrial requirements.