uxcell Metric Thickness Feeler Gauge 0.05-1mm 13 Blades Brass Measuring Tool for Width Gap

My company had some rollers under MRI that needed to check gap once in few months and this material works great for that.

I have had brass feeler gauges for many years, decades. I wanted to use them to check the hotend gap on my 3D printer. I could not find them. I ordered some from Amazon. And in the usual way, I found my old ones the same day that the new ones arrived. The new feelers are longer which suits the need perfectly, so I will use them for the task. I would have preferred to have 0.004 as the thinnest one, but what's a hundredth of a millimeter between friends?Good tool. Has a storage bag.