This 10 mm 6‑point 3/8" square drive socket is a hand tool designed to fit 10 mm hex-headed fasteners and to be used with 3/8" (9.5 mm) square drive ratchets, extensions and torque wrenches. Its primary use is to apply controlled turning force to metric bolts and nuts in confined spaces where a ratchet or breaker bar is required, providing a secure hex engagement to reduce rounding of fastener corners.

The socket is manufactured from heat-treated chrome vanadium (Cr‑V) steel for a balance of tensile strength and controlled hardness. It features a mirror‑polished, chrome‑plated finish to resist corrosion and ease cleaning. The internal profile is a 6‑point (hex) configuration to bear load on the flats of the fastener rather than the corners. The socket accepts a 3/8" square drive tool and has a spring‑loaded ball recess to retain tools and extensions; there are no threaded connections on the drive end. Dimensions conform to the common DIN 3124 standard for square‑drive sockets and are produced to be compatible with prevailing ISO/BS dimensional conventions to ensure interchangeability with other 3/8" drive accessories.

Typical applications include automotive maintenance and repair, light engineering and plant maintenance, assembly and service work, and general workshop use. The 6‑point geometry makes it particularly suitable for higher torque removal and installation of standard hex head fasteners, while the 3/8" drive gives a good compromise between access in tight spaces and the ability to transfer moderate torque levels. Industries that most commonly use this item are automotive, agriculture, building services and mechanical workshops.

Key benefits are its corrosion‑resistant chrome finish for longer service life in workshop environments, the strength and toughness of chrome vanadium construction, and compatibility with standard 3/8" drive tools and accessories. The 6‑point form reduces the risk of fastener damage compared with 12‑point alternatives when working on worn or tight bolts. Duchy Fasteners stocks this 10 mm 6‑point socket individually and as part of 3/8" drive metric socket sets; we carry a wide metric range and offer single pieces and multi‑pack sets to suit professional and DIY needs.