Originally Posted by
Giro
Above posts regarding 20% -100% for beam torque wrenches are quite correct and these for practical purposes do not go out of adjustment.
This is correct. In fact, they really can't be calibrated wrong, unless the dimensions of the beam (length, diameter) are significantly off, and that is pretty easy to get right.
It is not typically a problem on bikes, but one issue with beam type torque wrenches is that you have to apply the torque while having your eyes in a position to read the scale....it can be difficult when you need to apply 200+ lb-ft. while lying under a car. Those are the times I use the clicker wrenches.