1 Way box wrench (18mm)
Raceline 18mm hex Spark Plug box wrench
18mm Spark Plug box wrench
This is a single ended 18mm box wrench, suitable for installation and removal of spark plugs with 12mm thread size and 18mm hex size. Please check your spark plug fitting location as some plugs will be set too deep for this wrench to reach. Please also note that some 12mm threaded spark plugs have a 16mm hex size, this wrench will not fit those plugs.