Dull Circular Saw Blade Under USB Microscope

The USB microscope I used in the video is no longer available. It was a 60x-250x model. You can find similar models on Amazon.

USB Microscopes (Amazon Affiliate)
US: https://amzn.to/3iJcnxi
UK: https://amzn.to/3avgJVJ
CA: https://amzn.to/3asrqbI
ES: https://amzn.to/3g6nC1b
FR: https://amzn.to/2PW9Gw2
IT: https://amzn.to/340xJC5
DE: https://amzn.to/33YDBfa
IN: https://amzn.to/3105qlv
AU: https://amzn.to/2E845jC

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