This is a 34 mm impact socket with a 3/4 inch square drive, designed for use with pneumatic and battery impact wrenches to remove and tighten large hex fasteners. Its primary use is heavy-duty fastening and unfastening where high torque and resistance to repeated shock loading are required, such as wheel nuts, heavy plant bolts and structural connections.

The socket is manufactured from chrome‑molybdenum (Cr‑Mo) alloy steel and is heat treated to provide the toughness necessary for impact applications. It is supplied with a black phosphate finish to give enhanced corrosion resistance and to reduce surface glare. The socket features a 6‑point (hex) internal profile to provide maximum contact with hex fasteners and to reduce the risk of rounding corners. The square drive is 3/4" (19.05 mm) and the socket includes a through‑hole and retention groove so it can be used with retaining pins and O‑rings for secure attachment to impact tools. Manufactured to comply with applicable DIN, ISO and BS dimensional standards for square‑drive sockets, it is compatible with standard 3/4" impact tools and adheres to recognised safety and interchangeability criteria.

Typical users include commercial garages, vehicle fleet maintenance, agricultural and construction workshops, plant maintenance engineers and heavy machinery service teams. It is particularly suited to tyre‑fitters, HGV technicians and engineers working on excavators, tractors, generators and other high‑torque assemblies where impact-rated tooling is essential.

Key benefits of this 34 mm 3/4" impact socket are its resistance to fracturing under repeated shock loads due to the Cr‑Mo construction, improved corrosion resistance from the black phosphate finish, and the 6‑point geometry which improves torque transfer and reduces fastener damage. The inclusion of a retention hole and groove ensures safe use on impact guns and reduces the risk of the socket disengaging under load.

Duchy Fasteners stocks this Draper Tools Group D impact socket in a range of sizes and pack quantities; please check available sizes, single or boxed packs when ordering to suit workshop and fleet requirements.