This product is a 3/8" AF 12‑point Hi‑Torq socket with a 3/8" square drive, intended for hand‑tool use on 12‑point (double‑hex) and some hex fasteners where a compact engagement and increased contact area are required. Its primary use is for applying torque with a 3/8" drive ratchet, spinner handle, torque wrench or with extensions in confined spaces where a 6‑point socket would be difficult to position.

The socket is manufactured from chrome vanadium steel (Cr‑V), heat treated and tempered to provide the necessary hardness and toughness for repeated workshop use. It has a bright chrome plated finish that gives good corrosion resistance and eases cleaning after use. The tool conforms to the relevant DIN/ISO/BS hand‑socket specifications for dimension and fit (for example DIN 3124 style profiles), and is a 12‑point head type with a 3/8" (9.5 mm) across‑flats nominal size; drive engagement is a standard 3/8" square female recess. There are no threaded connections on the socket itself; it connects to square‑drive accessories by the detent/recess system of the matching ratchet or extension.

The Hi‑Torq 12‑point profile spreads load across more contact points than some low‑profile sockets, reducing the tendency to deform vulnerable fastener corners under higher hand‑torque and making it easier to engage fasteners at small angles. Typical applications include automotive repair, plant and machinery maintenance, HVAC and plumbing work, light engineering and agricultural repair where compact access and frequent socket changes are common. It is suitable for workshop and field use but should not be used in impact gun applications unless specifically supplied as an impact‑rated variant.

Key benefits of this socket include the alloy steel strength provided by the Cr‑V material and heat treatment, the corrosion resistance of the chrome finish, and the compatibility with the widespread 3/8" drive system and Draper tool accessories. The 12‑point Hi‑Torq geometry aids engagement in tight spaces and helps protect fastener edges.

Duchy Fasteners stocks this item individually and as part of Draper socket sets, across common drive sizes. We carry a full range of hand sockets in 1/4", 3/8" and 1/2" drives and multiple AF sizes, available in single packs and assorted sets to suit workshop requirements.