Torque Wrenches Calibration

torque wrenches
A tool for setting and adjusting the tightness of nuts and bolts to a desired value
A torque wrench is a tool used to precisely apply a specific torque to a fastener such as a nut or bolt. It is usually in the form of a socket wrench with special internal mechanisms. It was invented by Conrad Bahr in 1918 while working for the New York City Water Department.
(TORQUE WRENCH) A wrench containing an adjustable mechanism for measuring and controlling the amount of torque or turning force to be exerted – often used to tighten nuts on high strength bolts.
(torque wrench) a wrench that has a gauge that indicates the amount of torque being applied

calibration
(calibrate) mark (the scale of a measuring instrument) so that it can be read in the desired units; "he calibrated the thermometer for the Celsius scale"
Each of a set of graduations on an instrument
the act of checking or adjusting (by comparison with a standard) the accuracy of a measuring instrument; "the thermometer needed calibration"
The action or process of calibrating an instrument or experimental readings
(calibrate) make fine adjustments or divide into marked intervals for optimal measuring; "calibrate an instrument"; "graduate a cylinder"