This is a 21 mm 12‑point socket with a 1/2" square drive, designed for removing and tightening metric fasteners in workshop, garage and plant maintenance environments. The 12‑point (bi‑hex) profile gives more engagement positions than a 6‑point socket, making it easier to access nuts and bolts in confined spaces and where swing angle is limited. It is the Draper Tools Group D item DR33290 and accepts standard 1/2" drive ratchets, extensions and breakers.

The socket is manufactured from chrome vanadium steel (Cr‑V) that has been heat treated and tempered to provide the toughness required for routine workshop use. A bright chrome plated finish provides corrosion resistance and a smooth surface for ease of cleaning. The product is produced to common socket dimensional and drive interface practices in accordance with accepted DIN/ISO/BS tool sizing and drive standards for 1/2" square drives, ensuring compatibility with most ratchet handles and drive accessories used across industry.

The 12‑point head form is suitable for both hexagonal and 12‑point fasteners and reduces the need to reposition the tool when working in tight locations. As a 1/2" drive accessory it is appropriate for general mechanical assembly and disassembly tasks, light maintenance of agricultural and construction machinery, vehicle service and repair, plant maintenance and fabrication workshops. It is robust enough for everyday workshop torque levels when used with suitable hand tools and extensions.

Key benefits include effective corrosion resistance from chrome plating, material strength from the Cr‑V alloy and heat treatment, and wide compatibility with standard 1/2" drive tooling thanks to industry‑standard dimensions. The 12‑point geometry improves access and speed on fasteners where clearance is restricted.

Duchy Fasteners stocks this Draper DR33290 socket as single pieces and as part of socket sets, with metric ranges typically available across sizes from small 6 mm through to larger 30–32 mm sockets and in various pack quantities to suit trade and DIY requirements. If you need a specific set configuration, please contact Duchy Fasteners for current stock and pack options.