Toolwiz Spark Plug Gapping Tool 2pcs with 32 Blade Steel Feeler Gauge, Compatible with 12mm 14mm Thread Spark Plugs Valve Adjustment Tool

Cool tool. Great labor saver, can do a set of 24 plugs in 10 minutes with this.

I ordered both the long tool with feeler gauges and the two piece 12/14mm set to try out. I can say for my situation I got it for the long tool is far superior. I had to gap some plugs down to .025 and the long one easily flattened the electrode whereas the screw in type still left it at an angle. I think if you cranked on it with a pair of pliers you could flatten it, but… if you have a very small gap to do get the long tool. Otherwise save some bucks and get the other. Or if you don’t have a gap tool/feeler set get the longer one and come out ahead. Both types work, but one is better at least for smaller gaps.

Looks to be good quality just needs better packaging for shipment.

Worked great for my NGK iridium spark plugs, didn’t know these existed vs traditional old methods.

An excellent, practical tool.

Worked perfectly. Simple tool and simple to use.

Item was as posted. Very happy with it.

There are some other brands that make this or something similar. But the Toolwiz brand is built as well as you'd hope for. They took care to use materials that wouldn't damage spark plug threads, tip, or the ceramic. Well thought out.I like it for the progressive and precise way of closing gap. The holder doesn't damage the plug/ceramic, and the block that pushes down the tip is shaped correct and made of a nylon so no scratches. You turn the knob until it's just below the gap you desire, then back it off and check. Adjust it back down as needed because the tip has some spring back to it. My methods of gapping in the past have never been as precise or safe.One final recommendation. Although the feeler gauge is alright to check gap. Since you're never at a perfect flat plane with it, it's good to use a standard coin/ring gap checker as well to verify with as well.