This product is a 17 mm 12‑point hand socket with a 3/8 inch square drive, purpose-built for use with 3/8" ratchets, torque wrenches, extension bars and universal joints to install or remove 17 mm hex and 12‑point fasteners in workshop and maintenance environments. Its primary use case is routine mechanical fastening where a compact, accurate engagement and standard hand‑tool torque levels are required.

The socket is manufactured from chrome‑vanadium (Cr–V) alloy steel, heat treated and tempered to provide durable strength and resistance to wear. It features a mirror‑polished, chrome‑plated finish to help resist corrosion and make cleaning easier after use. The head is a 12‑point (double‑hex) internal geometry and the drive is a 3/8" (9.5 mm) square recess to mate with industry standard hand tool drives. The socket conforms to common dimensional and interchangeability conventions used for hand sockets under recognised DIN, ISO and BS standards for square‑drive sockets, and will fit standard 3/8" ratchets and accessories.

Typical applications include automotive repair and servicing, light engineering and maintenance, plant and machinery servicing, and general workshop use where space can be restricted and quick re‑engagement is needed. The 12‑point profile permits engagement on both hexagon and 12‑point fasteners and allows working at tighter access angles (engagement increments of 30°), which is useful on engine bays, gearboxes and installation work in confined areas.

Key benefits of this 17 mm 12‑point socket are its corrosion resistance from the chrome finish, the toughness and longevity provided by Cr–V heat treatment, and compatibility with the ubiquitous 3/8" drive tool system. The 12‑point form reduces the chance of rounding fastener corners when used correctly and enables faster positioning compared with a 6‑point socket at small swing angles. Note that this chrome‑plated socket is intended for hand use; impact applications require purpose‑made impact sockets.

Duchy Fasteners stocks the Draper Tools DR13237 17 mm 12‑point 3/8" drive socket in bulk quantities and carries a broad complementary range of 3/8" drive sockets, typically stocked from 6 mm up to 24 mm in single pieces, packs and full sets to suit workshop requirements.