Rannb Feeler Gauge Plastic Metric Gap Measuring Tool 0.05mm to 3mm 21 Leaf Filler Gauge for Spark Plug, Valve, Measuring Gap Widths and Thicknesses

Great for checking the clearances on my 3d prints and doesn't scratch them. The ring loop could be improved though, it likes to seperate.

In my business I have to check gaps many time. Our plant has one set of $600 gauges. They hate them. very stiff and not easy to use for small area gaps. I was at the plant using these and everyone is now asking me to let them know where they can get them as well. Are they calibrated? No. Would they be accepted by a large OEM? Depends on the OEM. Are they great for everyday checking and low cost enough to give to every inspector? Yes. I highly recommend these if you are in need of decent quality inspection gauges.

I use these thickness gauges for setting air gap in lawn mowers.

Gauge thickness seems to be accurate, but only checked a few. Great for checking clearances on delicate items.

We have a magnetic 3d printer bed. These are a life saver for leveling and ajustmenrs prior to start and they are not metal do they dontnstick to the magnetic bed. Exactly what we needed and we'll worth it.