The ATLIN 14mm spark plug socket is a specialty thin wall socket designed to remove 12 point spark plugs from certain vehicles. This spark plug tool is compatible with 2007+ BMW 3.0L turbocharged engines such as the N54, N55, N20, N26, S55, N63, B46, B48, and B58 This thin wall socket is also compatible with various Nissan vehicles, BMW motorcycles such as the R1200GS, and a wide range of MINI vehicles, such as those with the R55, R56, R57, and R60 engines. Because magnets can sometimes break or fall off of sockets and o-rings can sometimes grip too tightly, this socket was specially designed with a metal leaf spring retainer system which holds the spark plug firmly in place, but still allows for easy removal. The ATLIN thin wall bmw spark plug socket is a 3/8 inch square drive socket and is manufactured from durable, chrome vanadium steel. This 12 point 14mm spark plug socket is compatible with 2007 BMW 3.0L turbocharged engines such as the N54, N55, N20, N26, S55, N63, B46, B48, and B58 Along with certain BMW engines, our thin wall spark plug socket is compatible with a variety of MINI vehicles such as the R55, R56, R57, and R60 Incorporates a unique leaf spring retainer system to hold the spark plugs firmly in the socket. Does not slip like magnet grip systems, and does not grip too tightly like oring systems. This 14mm thin wall socket is crafted from durable chrome vanadium steel 38inch drive, 12 point, 14mm with thin wall deep well design