This is a 24 mm bi-hex (12-point) socket designed for use with 3/4 inch square‑drive hand tools. Its primary purpose is to engage 12‑point nuts and bolt heads in heavy‑duty maintenance and assembly work where more frequent engagement angles are needed, making it well suited to confined spaces or coarse access where a 30° swing is useful.

The socket is manufactured from chrome‑vanadium (Cr‑V) steel and heat treated to provide a balance of tensile strength and toughness suitable for workshop use. The external finish is bright chrome plated to resist corrosion and ease cleaning. The tool features a 12‑point (bi‑hex) recess and a 3/4 in (19.05 mm) square drive, compatible with standard 3/4 in ratchets, torque wrenches, extension bars and breaker bars. The product is produced to meet recognised DIN/ISO/BS dimensional standards for interchangeable sockets and square drives, ensuring compatibility with other standard hand tools.

Typical applications include commercial vehicle and agricultural machinery maintenance, plant and factory maintenance, heavy engineering and pipework assembly where 12‑point fittings and union nuts are common. The 12‑point profile permits quicker re‑engagement in tight access areas and works with both 12‑point and 6‑point fasteners; however, when maximum torque and reduced wear are required, a 6‑point socket is recommended for use on 6‑point bolts.

Key benefits of this 24 mm bi‑hex socket are its corrosion resistance from chrome plating, the strength and fatigue resistance provided by the Cr‑V material and heat treatment, and its interchangeability with standard 3/4 in drive tools. The socket’s dimensional conformity to DIN/ISO/BS standards ensures predictable fit and performance across mixed tool sets and drives.

Duchy Fasteners holds a comprehensive stock range of sockets and sets in various sizes and pack formats, including individual 24 mm sockets, multi‑piece sets and complementary extensions and adaptors to suit 3/4 in drive systems. Please contact us for current availability and pack options.