For loosening and tightening bolts or screws in motoring maintenance and general domestic use. Precision-ground hardened tool-grade chrome vanadium steel for extra strength and durability. Sockets feature cross-knurling for improved grip and 12 contact points. Ergonomic ratchet handle with bi-material soft-grip for comfort and control. Supplied in a carry case organiser. Chrome Vanadium Steel Construction 72-Tooth Ratchet Corrosion-Resistant Hardened Micro Chrome-Plated Finish Ball Socket Lock Ergonomic Soft-Grip Handle Carry Case Chrome Vanadium Steel Construction 72-Tooth Ratchet Corrosion-Resistant Hardened Micro Chrome-Plated Finish Ball Socket Lock Ergonomic Soft-Grip Handle Carry Case