Marking Torque Wrench

torque wrench
a wrench that has a gauge that indicates the amount of torque being applied
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.
A manual wrench which incorporates a gauge or other method to indicate the amount of torque transferred to the nut or bolt.

marking
An identification mark, esp. a mark or pattern of marks on an animal's fur, feathers, or skin
marker: a distinguishing symbol; "the owner's mark was on all the sheep"
a pattern of marks
A word or symbol on a score indicating the correct tempo, dynamic, or other aspect of performance
evaluation of performance by assigning a grade or score; "what he disliked about teaching was all the grading he had to do"