Upgraded Universal Spark Plug Gap Adjustment Tool with Magnetic Base Compatible with Most 10mm 12mm 14mm 16mm Spark Plugs - with Feeler Gauge and 14mm Magnetic Spark Plug Socket

So I got this for a 2018 Volkswagen Tiguan spark plug they're a little bit longer so I needed a deeper socket this thing is amazing It works great

This 14 mm size has become somewhat common on modern vehicles. I most recently ran into it on a Subaru.This socket works fine for the intended purpose. It doesn't have the jewelry level fit and finish of a professional socket, but it isn't bad. One small issue with the description is that this is not "mirror finished". It is in fact a more matte chrome finish. I don't care about that because I think mirror finishes are kind of a waste of polishing effort for a tool, and when the time comes to turn a socket with my fingers the high polish finish can be a detriment.The size marking is hard to read, but the socket looks so much different from everything else in my toolbox that I'm not going to have trouble recognizing it when the time comes.Made in China.

This is a great tool even for infrequent maintenance. Spark plug gaps usually increase with use. With this tool, simply place the plug in its holder, insert the feeler gauge for the appropriate gap spec, use the adjustment knob to close the gap until a slight drag is sensed when removing the gauge.It beats the old wire gauge for convenience, even if the wire gauge is arguably more accurate, It was also always challenging to adjust the gap if bent too far while trying to close it. This pretty much takes care of that presuming the gap has to be closed. If you are regapping 8 plugs, this will make the task much easier!!The 16mm socket looks and functions like a precision piece, although the swivel is a tiny bit rough. It was the right socket for a Husqvarna YTH27/54 riding mower with a Briggs and Stratton engine. The Craftsman wheeled trimmer uses a 21mm size socket.Have never seen a feeler gauge set with so many gauges!!

I was perusing Amazon one day and found this in the tools area. I never knew a tool, other than the old wire gauge even existed. I have now retired that into my box of ancient tools. This tool works great and I set the plugs in my 78 Dodge truck in a few minutes - each precisely gauged to factory specs. I would have spent twice as long doing it with the wire gauge, and the results would have been more subject to my best try using my eyeball and a 45 year old wire gauge!I'm sold on this, and you may not know you need this in your toolbox, but trust me, you do!

One thing I love about Amazon is having almost endless tool options at the tip of your mouse. A lot of tools I never knew existed, but now don’t know how I lived without. This spark plug gap tool is one example of the accessibility of such tools. I always hated adjusting and readjusting spark plugs. What you would think is a simple process, seemed to take forever when trying to get the gap to .001”. This tool greatly simplifies the process a works amazing. The gap tool is thick aluminum and well built. The included feeler gauges and spark plug removal socket makes for a full set needed to get the job done and is very versatile. With the extra tools, and time saved in the adjustment process, this is a great value for your money!

There a different types of spark plug gap adjusters.I like this style because the adjuster slides up to the plug and pushed in linearly. Some other use a knob that turn to give you the motion, but it is a circular motion and therefore you are pushing and twisting / scraping the plug.I don't know why the threaded knob does not have a lock nut to limit the travel. This would help to set it up for multiple plugs. The knob will not unscrew all of the way, so it may not be worth taking it apart.I did notice that the plug in this does not sit flat, it is slightly raised up where the gap side makes contact. Does this mean the gap should be facing down?The spark plug socket is very thin and should fit easily in these small diameter spark plug tubes.It has a strong magnet and holds the spark plug easily. This socket will require an extension.I have experienced extensions pulling out of the socket, instead of the magnet letting go of the new plug. At that time I need a tighter fitting extension, or a locking extension. This means I need a tool, for a tool. The better option is to get a socket that already has an extension attached to it.

Very nice magnetic socket - securely holds spark plug, and the universal joint gives some flexibility when clearance is an issue. The adjuster is certainly an improvement over previous inaccurate methods I've used. Included is a very nice feeler gauge, but it is not really intended for spark plugs since it maxes out at 0.032" and is flat (not round like other spark plug gap gauges) so more difficult to use, but I will definitely make use of it in non-spark plug applications.

I've always done the method of smacking the spark plug with a ratchet or wrench to change the gap. Doing that has always led to making the gap too tight and having to widen it, only to go too far and needing to hit it again. The materials appear to be really high quality. This isn't a necessary tool but it is very welcomed in the toolbox!