Mad Mike
Well-known member
I didn't do a great job of explaining the scale method... I check my wrenches this way using the grip and a reference on the weight which I note inside the case. IIRC my 24" wrench is 150ft/lbs @ 75lbs on the handle. A smaller 18" wrench would be 112.5.Still not quite right. You need to do math for the lever. Gripped at 18" and apply 75 lbs and you get 112.5 ft-lbs. Your method can work similar to mine but if you are not holding at 12", you need to add math.
I should have added explained how to calculate mechanical advantage. Torque setting in ft/lbs= lever_length X weight / 12.
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