I want a compression gauge that has the assorted attachments for threading into multiple sized spark plug holes.
What sizes are there?
I've seen metric sizes. Are there fractional inch sizes also?
Do most compression gauges come with the rubber tipped adapter for when you run into a spark plug size for which you don't have an adapter?
And if you can recommend a good brand and source I would appreciate it. (The Lisle is about the only compression gauge I've seen in a long time and it only had 2 sizes of fittings. I would think there would be more than that but I'm not sure.)