The Groz 7-Piece Metric Allen Key Set includes hex keys ranging from 2.52mm to 10mm, designed for fastening and loosening hexagonal socket screws and bolts across automotive, machinery, and general maintenance applications. Each key features a hardened steel construction with precision-ground tips for accurate fit and maximum torque transfer without stripping. Ideal for mechanics, engineers, and trade professionals who require a complete metric hex key set for workshop and field work.