Thin wall spark plug socket for use when installing NGK or other spark plugs such as BR8EG, BR9EG, BR10EG, B8EGV, B9EGV, B10EGV.
These are available in both 3/8" or 1/2" drive.
Due to the nature of how much material is removed during the machining process, life of this socket can be limited, and they will crack over time. However, money saved from running expensive iridium or platinum spark plugs far outweighs the cost of the economical plugs and this socket.