This product is a 16 mm deep socket with a 1/2 inch square drive, designed to reach recessed hexagonal fasteners where a standard shallow socket cannot. Its primary use is for loosening or tightening M16 and metric hex nuts and bolts in confined or deep-set applications when fitted to a 1/2in ratchet, breaker bar or torque wrench.

The socket is manufactured from chrome vanadium (Cr‑V) alloy steel that has been heat treated to increase torsional strength and toughness appropriate for hand‑tool use. The internal profile is a 6‑point (hex) configuration to give maximum contact with bolt flats and reduce the risk of rounding. The external finish is a bright, mirror chrome plating that improves corrosion resistance and eases cleaning after use. The socket connects via a 1/2in square drive recess compatible with standard 1/2in drive accessories; there are no threaded elements on the fitting itself.

Dimensionally, the socket is produced to conform with common DIN/ISO/BS dimensional standards for hand sockets so it will properly fit standard 1/2in drive ratchets and extensions. The 6‑point profile and Cr‑V construction make it suitable for applied torque from manual ratchets and most hand‑operated torque wrenches without permanent deformation.

Typical applications include automotive repair and servicing, agricultural machinery maintenance, industrial plant maintenance, construction equipment work and general mechanical engineering. The deep socket is particularly useful for cylinder head bolts, wheel bearings, suspension components and any assembly where the nut sits on a long stud or within a recessed boss.

Key benefits include improved access to recessed fasteners, good corrosion resistance from the chrome finish, and the strength and durability of heat‑treated chrome vanadium steel. The 6‑point design improves torque transfer and reduces damage to fastener heads, while compatibility with 1/2in drive tools ensures interchangeability with common workshop equipment.

Duchy Fasteners stocks this 16 mm deep socket in bulk packs and can supply a range of metric sizes across 1/4in, 3/8in and 1/2in drive formats; please contact us for available pack quantities and larger size sets.