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by bluGill 896 days ago
Generally the wrench sell is the one who paid the engineers to figure out the details. By the time I as a buyer/owner do the analysis I'm 120% of the way to building my own wrench. That is it would be easier to design a wrench from scratch than to prove someone else's wrench has the wrong procedure. (when starting from scratch you choose known alloys with known properties, when buying you have to figure out what alloy they used before you can figure out the properties of it - this is not easy)