The Sealey 9 Piece Lock On Ball End Hex Key Set delivers professional-grade performance for tradespeople working with metric hex fasteners. This comprehensive metric hex key set features a patented twist design on the short arm that grips tighter as it turns, making it particularly effective for removing rusted, damaged or severely rounded hex head fasteners without causing further damage. Manufactured from chrome molybdenum steel with a polished satin finish, this set offers exceptional durability and corrosion resistance for long-term workshop use. The ball-end design allows each key to drive fixings at angles up to 25°, providing valuable flexibility when working in confined spaces or accessing awkward fasteners. The set includes nine essential metric sizes ranging from 1.5mm to 10mm, with key lengths spanning 88mm to 225mm to suit various applications. Whether you're working in automotive repair, machinery maintenance or general engineering tasks, this hex key set provides the vers