Alloy wheel nut socket set with colour coded nylon sleeves 1/2″D x 17, 19, 21mm x 150mm long 3 extra long (150mm) wheel nut sockets. 1/2″D. Sizes 17mm, 19mm, 21mm with protective nylon sleeve, colour coded. Thin walled, impact sockets made from Chrome Molybdenum for strength. Consumable.