The 22mm Combination Spanner is a hand tool designed to tighten and loosen 22mm hexagon head bolts and nuts, combining an open-ended jaw and a boxed (ring) end in a single, compact tool for general maintenance and repair work. It is primarily used where a versatile, single-tool solution is needed for turning metric fasteners in confined spaces, routine servicing and assembly tasks.

Manufactured from chrome vanadium steel (Cr-V), the spanner is drop-forged and heat-treated to give a consistent balance of toughness and edge retention. The surface is finished with a bright chrome plate that provides improved resistance to corrosion and makes the tool easier to clean. The open end is angled at 15° to provide clearance and allow a flip action for incremental rotation, while the ring end is a 12-point box profile to engage the flats of bolts with minimal slippage and reduced risk of rounding. This product conforms to recognised DIN, ISO and BS dimensional standards for metric combination spanners, ensuring correct fit and interchangeability with metric fasteners. Thread type is not applicable for this tool, and the drive is by hand using the open or boxed ends.

Typical applications include automotive repair, plant and machinery maintenance, electrical and mechanical engineering, HVAC servicing and general industrial assembly. The 22mm size is commonly found on suspension, engine and hydraulic components in light and heavy vehicles as well as on industrial equipment and mounting hardware. The combination of the open and ring ends makes the spanner suitable for both quick loosening and secure final tightening.

Key benefits include durable corrosion resistance from the chrome finish, predictable mechanical strength from the Cr-V material and heat treatment, and widespread compatibility with metric hex fasteners due to adherence to established size standards. The 12-point ring end offers quicker location on fastener heads while the angled open end improves access in tight assemblies.

Duchy Fasteners stocks this 22mm combination spanner as a single tool and within metric spanner sets; our range covers common metric sizes (typically from 6mm up to 32mm) and we supply individual lengths and multi-piece packs to suit workshop and site requirements.