This Spark Plug swivel socket in 6" long is just like it was designed specifically for Infiniti QX80. Anything dimensionally different, longer, shorter or wider would made it really difficult or impossible to take all spark plugs out. Especially the one in the most difficult location (driver side, closest to the fire wall). Watch youtube video and read comments for details. This one plug makes it a very frustrating job but this socket makes it possible. This thin wall socket has perfect magneticSee full review