This emergency locking wheel nut and locking wheel bolt remover set is manufactured from heavy gauge impact steel. The deep internal reverse thread, 4 piece set, contains four 38mm long socket sizes which can remove 17, 18.5, 21.5 and 26mm locking wheel nut and locking wheel bolt. They can be used for removing most locking wheel nuts and locking wheel bolts when no key is available, where the key has been lost or broken.