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Your cart is empty.Gauges and Gaps all Types of Spark Plugs from .020" to .100" (.50mm to 2.53mm). Tapered edge for gauging spark plugs. Specially designed hole with flange adjusts side wire of plug without pressuring center electrode.
Brandon Marcelo
Reviewed in the United States on February 19, 2025
The size is perfect, the quality is good it's the same you can buy at any parts store its not expensive & if it is it's worth having for when you need to do your own spark plugs & the Gap Accuracy is good.
Kay F
Reviewed in the United States on August 26, 2024
Works exactly as described and small enough to toss into my toolbox.
nick
Reviewed in the United States on August 13, 2024
Good casting. Numbers legible and measurements very accurate as tested with a digital micrometer known by me to be accurate. Good to have for when (not if) I’ll need it.
LHowell
Reviewed in the United States on July 22, 2024
Simple design, easy to use and accurate. Has some weight to it so it should last a long time.
TheRealGirlGenius
Reviewed in the United States on June 8, 2024
I needed to change a lawn mower spark plug for the first time ever and needed a gap tool. My mower requires a .030 gap, but the spark plug was .035. I pressed the spark plug against this tool and it held up well. I made the gap too small, so I used the tool to widen it to the perfect spot. Easy to use for any novice.
JVS
Reviewed in the United States on June 17, 2024
Work great and easy to use.
Matt Jones
Reviewed in the United Kingdom on September 1, 2021
Does what it says, plenty high enough quality
johno
Reviewed in the United Kingdom on May 5, 2020
Had one for years, but after tidying garage....so as not too expensive bought a replacement.May not be the most accurate was of gapping plugs, but in the field its a good make do tool.Good value.
Bertus
Reviewed in Italy on December 16, 2020
prodotto molto funzionale e di buona fattura
John Pawlowski
Reviewed in the United States on November 22, 2020
Agreeing with others who have commented, I'm just a guy looking to replace a spark plug on my own lawn mower/snowblower. This was the cheapest, yet most relevant gadget I could find online, and that's why I bought it. I personally have no qualifications to remark at how accurate the gauge is. All I can say is that I used it to set the gap according to the Honda small engine manual I was referencing, and it fired right up. Seems like a pretty affordable solution to have hiding in a bench drawer somewhere for the 1-2x I might need it every other year.
peter Kent
Reviewed in the United Kingdom on October 18, 2020
Arrived swiftly, and does exactly what you would expect, gaps well.
David Staten
Reviewed in the United States on August 18, 2019
Bought this and used it as a one time tool to adjust my spark plugs. It's cheap yet must-have for spark plugs replacement. It's not a pro grade tool by all means. It chipped away a little bit when i bend the tips. i m satisfied since it's only a dollar. What more can i expect? Lol
Canadian Car Guy
Reviewed in Canada on July 14, 2016
This is a great 2 in 1 tool for the amateur mechanic! You can check the gap of your spark plugs, then re-gap them if you don't like the result! The measurements are accurate, I know because I checked them with a caliper. It's inexpensive, good quality, and does exactly what it needs to do! That's exactly what you need when you're looking for tools, so this guy gets 5 stars from me!
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