… marking-out or mathematical calculating instruments (for example, drafting machines, pantographs, protractors, … instruments for measuring length, for use in the hand (for example, measuring rods and tapes, micrometers, callipers), …
Explanatory notes
… for smaller, larger or same scale reproductions of maps, plans, drawings, parts to be machined, etc. The heading includes such instruments used for course plotting in navigation. (2) Drafting machines generally … etc.). (1) Beam compasses (marking, carpenters’, etc.) with plain or divided laths. (2) Scribers and centre punches . …