Alloy wheel nut impact socket with special 17mm convex profile fitted to the new Mercedes-Benz C Class (W204), E Class (W211, W212, W207) for 1/2" drive impact wrench or breaker bar. Overall length of 86mm. Made of hardened and tempered Chrome Molybdenum (Cr-Mo) steel with manganese phosphate finish for extra corrosion resistance as well as nylon sleeve for alloy wheel protection. Each feature retaining hole for extra safety (pin and safety ring can be purchased separately). Manufactured for professional daily use with air or battery powered impact wrench. Supplied as individual 17mm convex impact socket.