Wasn't meant to be an insult. Just what I was thinking after reading your post.
and nothing to back it up.....
How do you know if it's working if you don't calibrate it? Sure, it works as a breaker bar, but how accurate is it at measuring torque? If you don't care about accuracy, why bother with a torque wrench? Your type of wrench is called a *Beam*. They are more forgiving than most other types, but forcing it past it's intended range will ruin it, permanently. It will look like it still works, but you can't trust the readings. Bottom line--a torque wrench is an instrument for taking measurements and should be used only for that. Dave