The Sealey 12 Piece Ratchet Combination Spanner Set delivers professional-grade performance for mechanics and engineers working in confined spaces. Manufactured from high-quality Chrome Vanadium steel, these slim profile spanners are hardened and tempered to withstand the demands of daily workshop use. Each spanner features an ultra-smooth 100-tooth WallDrive® ratchet ring end, providing fine incremental movement of just 3.6 degrees per click. This precision makes them ideal for fastening work in tight areas where a standard spanner would require excessive swing arc. The fully polished micro satin finish enhances durability whilst preventing corrosion in demanding workshop environments. The comprehensive 12-piece set covers metric sizes from 8mm through to 19mm, spanning the most commonly encountered fastener sizes in automotive, plant maintenance and general engineering applications. The included storage and carry rack keeps the spanners organised and protected, whether mounted in the