Using and disassembling a cheap metric bore gauge I bought on Amazon. It is truly both good and bad. I show how to use an indirect reading bore gauge and discuss the good and bad about this extremely cheap precision tool.

It looks like it went out of stock quick but here is the link in case it comes back, in the meantime you might also check Aliexpress.
Bore Gage .0005" Gauge 35-50mm (1.4"-2" Range) - https://amzn.to/3xljOTH
The previous is an affiliate link, the channel receives a small fee when you use it. It costs you nothing extra.