1/2" Drive x 17mm WAF x 88mm long Application Compatible with Mercedes Benz C Class GLK (W204) and E Class (W211, W212, W207) Manufactured from Chrome Vanadium Thin wall with protective sleeve (Consumable) Failure to use the correct socket will damage the wheel nuts Alloy wheel impact sockets have thin walls and can only be used at low torque. These are classed as a consumable and do not carry a warranty. Ideally should be tightened using a torque wrench.