mõõtevahend mõõteobjekti mõõtmeelementide sügavuste mõõtmiseks, measuring instrument which gives the evaluation of a dimensional quantity of a step or depth of a feature corresponding to the distance between the end of a beam and the face of a measuring base on the basis of the movement of a slider, moving relative to a measuring scale on a rigid beam, dimensional measuring instrument for measurement depth of a features of size, instrument for measuring depth below a reference surface