This guy does more than just review how well a tool works - he actually takes the tool apart and shows what is good and bad engineering. They are long however an usually two part, first the tear down and then the electrical/mechanical testing. The guy is very entertaining as well, so make them easy to watch.
Here are a couple I have watched.
Last Edit: Sept 21, 2017 8:11:03 GMT -5 by BeeAmaker
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