This is a 3/16 inch, 12‑point hi‑torq socket with a 1/4 inch square drive, designed for removing and installing small hex and bi‑hex fasteners where a higher torque transfer and reduced rounding of corners is required. Its primary use is in light engineering, automotive trim and service work, bicycle and appliance maintenance, and any environment where compact, accurate access to 3/16" fasteners is needed.

Manufactured from chrome‑vanadium steel (Cr‑V) that has been heat treated and tempered, the socket carries a bright chrome finish to resist corrosion and make cleaning simple. The 12‑point (double hex) internal profile allows engagement at 30° indexing increments, making it easier to work in confined spaces than a 6‑point profile, while the hi‑torq geometry provides increased contact area to reduce rounding on worn fasteners. The tool accepts a 1/4 in square drive (1/4sd) ratchet, torque wrench or extension, and the drive end is machined to fit standard UK and international 1/4 in tool fittings.

The socket is produced to common industry socket profiles and dimensional tolerances in line with recognised DIN and ISO specifications for hand sockets, and is compatible with BS‑style tooling dimensions used in British workshops. While the hi‑torq construction improves torque capacity, users should still observe the torque limits of their 1/4 in drive ratchet or torque wrench rather than overloading the drive tool.

Typical applications include light vehicle trim and engine bay work, maintenance of small machinery and instrumentation, HVAC controls, and domestic appliance repair. The combination of chrome‑vanadium material and plated finish gives a balance of toughness and corrosion resistance suitable for garage and workshop use, and the 12‑point form increases versatility when fasteners are positioned awkwardly.

Duchy Fasteners stocks this item as part of the Draper Tools Group D range; it is available individually and in multi‑packs, and we carry the full 1/4 in drive imperial socket series so you can select adjacent sizes to complete a set. Part codes and pack options are available on request.