You have not worked with many working mechanics or you would not make that sort of statement. "pros" abuse the tools a lot more than a DIY or joe homeowner ever would, many times I have sacrificed a tool just to hopefully get the job done or ground or bent it to make a special tool.
You will find one of these gadgets in many a mechanics drawer. I do my best to take care of my tools but I am not kind to them either and would not use an extender if there was any other way, if not stuff starts getting abused.
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How tight do you figure a M12 bolt is going to be after being in service under a car in the rust belt for 10 years or longer? It is not going to be 125Nm that I can guarantee but it still needs to come out . I never said Snap on are bad tools but some of the crap they put out recently is genuine crap and not worth the price of cheap chinesium. I much prefer Hazet or Stahlwille, old Dowidat, Elora and a few others. Equal quality to Snap on and very much pro level tools at a much lower price point because of Snap on business model not because they are cheaper tools.
They are for entertainment but do prove a point. You don't have to spend upward of $600 to get a tool that works well and made of like quality steel. The "The snap-on tools are excellent and reflect the mature understanding of professionals that there's more to performance than brute strength" comment is absolute rubbish and I hope you made that in jest.
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