This 14-piece metric combination spanner set is a hand tool kit for loosening and tightening hexagonal nuts and bolts in metric sizes. Each tool combines an open-ended jaw at one end with a ring (box) end at the other, making the set suitable for general workshop use, maintenance tasks and on-site servicing where a mix of quick access and secure engagement is needed.

The spanners are manufactured from chrome vanadium (Cr-V) steel, drop-forged and heat-treated to achieve the strength and durability required for repeat torque applications. The surface is finished with a bright chrome plating to provide corrosion resistance and ease of cleaning. The spanners are produced to recognised metric combination spanner dimensional profiles used in industry (conforming to standard DIN/ISO/BS dimensional practice for combination spanners), with the ring end formed as a 12-point box for quicker engagement and the open end set at a 15° offset to improve access in confined spaces.

Typical applications include automotive repair, plant and machinery maintenance, mechanical and fabrication workshops, agricultural equipment service and general building maintenance. The 12-point box end reduces the risk of rounding fastener edges compared with poorly fitting tools, while the open end allows use where the box end cannot be slipped over a stud or in cramped positions.

Key benefits of this set are the corrosion protection from chrome plating, the torsional strength provided by heat-treated chrome vanadium steel and the compatibility with common metric fasteners used across European and international equipment. The combination of open and boxed ends gives versatility to tackle a wide range of fastening tasks without swapping tools unnecessarily.

Duchy Fasteners stocks this set (reference DR34236) in a 14-piece configuration covering sizes 6 mm to 19 mm (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 mm) supplied in a compact storage roll for organised transport and workshop storage; individual sizes and alternative pack formats are also available on request.