The 32mm 12pn 3/4" Square Drive Socket is a hand socket designed to fit 32mm hex and 12‑point fasteners and to be driven from a 3/4" (19.05mm) square drive ratchet, breaker bar or torque wrench. Its primary use is to apply controlled hand or lever torque to large nuts and bolts commonly found on commercial vehicles, agricultural machinery and heavy plant.

This socket is manufactured from chrome vanadium (Cr‑V) alloy steel that has been heat treated and tempered to resist deformation under repeated torque. It features a 12‑point internal profile (double‑hex) that allows engagement at smaller swing arcs, which is useful in confined spaces, and it will also fit 6‑point fasteners where required. The socket bears a bright chrome plated finish to provide corrosion resistance and ease of cleaning; size and marking are typically laser‑etched for long‑term legibility. The drive interface is a 3/4" square recess compatible with standard 3/4" drive tools. Although designed for hand tool use and torque wrenches, it is not intended as an impact socket; impact use requires chrome molybdenum tooling with a black phosphate finish.

Manufactured to common DIN/ISO/BS dimensional requirements for square‑drive sockets, this item is interchangeable with other workshop and industrial toolsets that follow those standards. The 12‑point form is particularly suited to maintenance tasks where rapid repositioning is needed or where a fastener head is accessible only at acute angles.

Typical applications include commercial vehicle wheel and driveline work, plant and machinery maintenance, construction equipment service, rail and maritime workshop tasks, and general industrial assembly where larger torque values are applied with hand tools. The main benefits are the corrosion resistance of the chrome finish, the strength and fatigue resistance of the heat‑treated Cr‑V material, and compatibility with the widely used 3/4" drive system for higher‑torque hand applications.

Duchy Fasteners stocks this socket across a range of sizes and in various pack quantities; please contact us for availability, bulk pack options and compatibility with matching 3/4" drive ratchets and extensions.