The thin wall design of this tool allows spark plugs to be changed on the following models
BMW N54 engines
Some Citroen models
Mercedes M156 engine
Peugeot 207 and 307
Some Renault 1.2 16 valve engines
The socket has a 3/8 inch square drive, a 12 point bi-hex design and is made from chrome vanadium with a matt black finish.