Review on Enhance Engine Performance with Stanley Proto J000K Spark Plug Gap Gauge Set: A Comprehensive Review and Buying Guide by Kevin Gunnmann

A bit pricey and maybe not the best materials. Sensor wires are filled with plastic. They seem accurate, but I wonder if they'll ever get out of their plastic base. The metal frame is fine and the clamp screws at each end come in very handy when using the tool. The ground electrode bender is a loose fit on the electrode and requires careful positioning to work. I had to cut corks to 0.028mm and this is the only tool I could find with this size. If you are lucky or choose spark plugs made specifically for your car, they are most likely properly spaced, which is best.