This product is a 19 mm, 12-point socket with a 3/8 inch square drive, supplied in bulk for trade and workshop use. Its primary purpose is to fit over 12-point (double‑hex) fastener heads and nuts and to be driven by any standard 3/8" ratchet, extension or universal joint for removal and installation in mechanical, automotive and maintenance settings.

The socket is manufactured from chrome vanadium (Cr‑V) steel and is heat‑treated and quenched to develop the required strength and toughness for repeat use. The external finish is bright chrome plating, providing improved corrosion resistance and easier cleaning. The drive end is a 3/8" (9.5 mm) square female receptacle with a spring‑loaded detent ball recess to ensure positive retention on ratchet spindles or extensions. As a 12‑point socket it engages fasteners on 12 positions, allowing finer ratcheting arcs in confined spaces compared with 6‑point designs.

These sockets are produced to recognised hand tool quality standards and workmanship typical of DIN/ISO/BS specifications for sockets and drive tools, and are compatible with standard 3/8" drive accessories. The 12‑point form is particularly useful for working with hexagonal and double‑hex fasteners, damaged or slightly rounded heads, and where quick indexing between engagements is required. For high‑torque applications or precision torque calibration it is recommended to check tool ratings, as 6‑point sockets are often preferred for maximum torque transfer to fresh hex fasteners.

Typical applications include automotive repair and servicing, plant and machinery maintenance, agricultural machinery, HVAC and general industrial assembly and breakdown work. The combination of Cr‑V steel and chrome finish offers a balance of strength and corrosion resistance suitable for workshop environments, and the 3/8" drive ensures compatibility with a wide range of sockets, ratchets and accessories.

Duchy Fasteners stocks this 19 mm 12‑point 3/8" drive socket in bulk quantities alongside a comprehensive metric socket range. Sizes and pack quantities are available across the metric range; please contact Duchy Fasteners for current stock levels and pack options.