Review on K MOTOR PERFORMANCE Spark Plug BMW Nissan Subaru Mitsubishi Scion Infinity by David Dreher

A simple tool to fill gaps on spark plugs. I would like to clarify that this will not work with the very common 14mm plugs found in many of the vehicles listed in the description. However, 12mm plugs screw in properly and luckily I had a kit to test this item. The kit consists of a basic SAE marked and metric feeler gauge and an aluminum spark plug retainer with a threaded knob to narrow your clearance. . No instructions are included but it is very easy to use and anyone who has ever fired a spark plug will find it much easier than traditional methods. The quality of the tool is good, it has beveled edges and is painted black so it looks clean and not sharp at all. The pen is small and a bit basic but it works well and seems accurate compared to another pen I have. occasionally. It should last forever and I really don't think it will break. I will definitely be buying the 14mm version as these are the plugs I work with the most on my Subaru EJ20 engine. No problem with this kit, it's simple yet effective.