Review on 🔌 CNRAQR Spark Plug Gap Tool - 1 Set with Feeler Gauge: Optimal Performance with 14mm Thread by Junior Andreano

I have been in the aftermarket business for 28 years and even longer racing and have never seen one like this. Since I often change plugs in my hot rod, I figured this would be a good thing. I use Autolite and NGK 3/4 spark plugs. Dodge 360LA based spark plugs. When I first screwed the plug in, it didn't go deep enough to adjust the gap with this tool. I had to hold it in a vise and use a percussion gun to jiggle the spark plug back and forth until it was loose enough and loose enough that I could screw the spark plug in by hand. Not sure if it was caused by paint or something, I also had to file the back of the tool where the spark plug came out of the threaded hole. After that it worked quite well. If I didn't have to do all that, I would give 5 stars. I think this is a cool tool if your spark plug gaps are vital to your performance meters (NOS) etc.