External KM Lock Nut Socket Set - 9pc

A 9-piece set of KM sockets with 4 external (in-line) teeth for use where the castellated lock nut (groove nut) can only be accessed from in front and not from the sides. KM groove nuts are often used as lock nuts on shafts or in housings to hold bearings in place. All supplied in a blow mould case for convenient storage, ideal for workshop and automotive use.