This 17 mm impact socket with a 1/2 inch drive is a specialist workshop tool designed to be used with pneumatic, electric or cordless impact wrenches for installing and removing hex-headed nuts and bolts under high torque. Its primary use case is heavy-duty fastening and removal where repeated impacts are required and a conventional chrome socket would be damaged.

The socket is manufactured from heat-treated chrome‑molybdenum (Cr‑Mo) alloy to provide toughness and fatigue resistance under impulse loading. It features a 6‑point (hex) internal profile to engage the flat sides of fasteners securely and reduce the risk of rounding. The drive end is a standard 1/2in (12.7 mm) square recess so it will fit directly onto 1/2in impact wrenches, breaker bars and hydraulic tools; it is compatible with standard detent-pin or spring‑ball retention systems. The exterior has a black phosphate/oxidised finish to inhibit corrosion and to reduce paint or coating chipping commonly seen with impact use. The socket is produced to industry dimensional norms and is compatible with DIN/ISO/BS socket profiles for interchangeability across common tool sets.

Typical applications include vehicle and commercial fleet maintenance, plant and machinery servicing, construction and civil engineering work, and agricultural equipment repairs. The robust Cr‑Mo construction and impact‑rated design make it suitable for garages, vehicle depots and industrial maintenance shops where fasteners frequently require high torque for removal or tightening.

Key benefits include improved resistance to cracking and chipping under repeated impacts, a 6‑point profile that maintains grip on fastener flats to minimise rounding, and a corrosion‑resistant finish for longer service life. The 1/2in drive compatibility ensures the socket works with a wide range of impact tools used across workshops and site operations.

Draper Tools reference DR28496; Duchy Fasteners holds this 17 mm 1/2in impact socket in stock as a packed single item and supplies a broad range of metric and imperial impact sockets across 1/4in, 3/8in and 1/2in drives in single and multi‑pack options. Please check current availability and pack sizes.