Originally Posted by
eduskator
Won't the metal end up losing its properties (excuse me if I don't use the proper word here) on the long run? It will not stay calibrated forever.
You may be right, over some time scale and level of use, and I'm sure one of the materials science experts, mechanics, (or BSers) here will straighten us out on that. Allz I know is beam torque wrenches require calibration a lot less often than clickers, which require it on a regular basis.