This is a 30 mm bi‑hex (12‑point) socket designed for use with 1/2 inch square‑drive hand tools. Its primary use is to engage 12‑point nuts and bolts where multiple engagement angles are required or where access is restricted; the 12‑point profile allows the ratchet to be re‑positioned in smaller increments compared with a 6‑point socket, making it especially useful for maintenance, repair and plant work.

The socket is manufactured from chrome‑vanadium steel (Cr‑V) and is heat treated to improve toughness and wear resistance. It is finished with a polished chrome plating to provide good corrosion resistance and to make cleaning and identification easier on the workshop floor. The head type is bi‑hex (12‑point) and the drive type is a 1/2 inch (12.7 mm) square drive, compatible with standard 1/2 in ratchets, breaker bars and torque wrenches. The socket features a retaining hole for use with detent pins or retaining clips where secure attachment to the drive tool is required. Dimensions and fit conform to common DIN/ISO/BS socket standards for interchangeability with industry standard tools and fasteners.

Typical applications include vehicle and heavy plant maintenance, mechanical assembly, agricultural machinery servicing, and industrial equipment installation where larger metric fasteners are encountered. A 30 mm size is often employed on flanges, suspension and steering components, driveshafts and larger assembly bolts in construction and engineering environments.

Key benefits of this socket are its corrosion‑resistant chrome finish, the strength and fatigue resistance offered by Cr‑V steel, and the versatility of the bi‑hex profile which reduces the likelihood of rounding off fasteners in cramped spaces. Compatibility with 1/2 inch drive tools and torque wrenches makes it suitable for both general workshop use and torque‑sensitive tasks; always ensure the correct torque settings are applied for critical joints.

Duchy Fasteners stocks this 30 mm bi‑hex 1/2 in drive socket as single pieces and in multi‑packs, and we carry a wide metric socket range across common sizes to suit trade and industrial requirements. If you need alternative sizes or sets, contact our sales team for available options and pack quantities.