The Siegen S0634 is a 12-piece combination ratcheting spanner set designed for professional tradespeople and serious DIY enthusiasts who need reliable metric spanners for mechanical work. Manufactured from durable Chrome Vanadium steel, this set delivers the strength and longevity required in demanding workshop and site environments. The 72-tooth ratchet mechanism is the standout feature of this spanner set, requiring only 5° of rotation to pick up the next tooth. This fine ratchet action makes these spanners ideal for working in confined spaces where a full swing isn't possible, such as engine bays, tight pipework installations, or cramped machinery maintenance tasks. The combination design provides both a ratcheting ring end and an open-ended spanner in one tool, offering versatility for different fastening applications. The set covers a comprehensive range of metric sizes from 8mm through to 19mm, providing the essential sizes required for most automotive, mechanical, and general maintenance work. Each spanner is housed in a practical EVA foam storage tray that keeps your tools organised and protected, whilst also making it easy to identify missing pieces at a glance. The set is backed by a lifetime guarantee, providing confidence in long-term durability. Features and Benefits: • Chrome Vanadium steel construction for strength and corrosion resistance • 72-tooth ratchet mechanism requiring only 5° rotation for confined space working • Combination design with ratcheting ring end and open-ended spanner • Comprehensive 12-piece metric set covering 8mm to 19mm sizes • EVA foam storage tray for organised tool management • Lifetime guarantee for peace of mind Specifications: Brand: Siegen Contents: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19mm Maximum Length: 245mm Minimum Length: 140mm