The Siegen 15 Piece Ratchet Combination Spanner Set is a professional-grade metric spanner set constructed from durable Chrome Vanadium steel, designed for mechanics, engineers and maintenance professionals. This comprehensive ratchet spanner set features an advanced 72-tooth ratchet ring and gear mechanism requiring only 5° rotation to pick up the next tooth. This fine-tooth design makes these combination spanners ideal for working in confined spaces and restricted access areas where a full swing isn't possible, significantly improving efficiency in tight engine bays, under dashboards, or in crowded equipment housings. The set covers commonly used metric sizes from 8mm through to 24mm, providing versatile coverage for automotive maintenance, plant servicing, and general mechanical applications. Each spanner combines a ratcheting ring end with an open end, offering flexibility in approach and application. The set arrives organised in a practical EVA storage tray that keeps tools secure