I have coupled a dial indicating torque wrench to a click type and seeing if the readings agree- - - - -set the clicker to a specific torque, clamp it in a vise, and use the dial type to slowly increase the load until I get a click. My dial wrenches have a "tattle-tale" needle on them that indicates the highest reading of the moving hand. A Snap-On wrench that I used when I was investigating warranty claims got a certified calibration annually, since I was subject to being called as an "expert witness" in lawsuits. One investigation I did five years ago is still being litigated- - - -an injury accident involving a piece of farm equipment, and It's possible I might get a free vacation to Florida to testify in that trial! A farm worker got severely injured when a hydraulic hose burst and let a round hay baler clamshell door drop on him while he was greasing bearings prior to going to work one morning. The machine was repaired in a very sneaky way with a USED hose- - - - -trying to hide the source of the accident.
Jerry
