Fitting up works cover a set of efforts and techniques in assembling and adjustment of different mechanisms, units and blocks. It is meant also metalworking using hand and mechanical tools. The list of fitting up works includes: marking-out, filing, cutting, threading different types of threads, drilling/boring, hole reaming and trueing, grinding and polishing of surfaces, piece assembly, their fitting and finishing, engraving. At our enterprise work fitters of high qualification without whose efforts and mother wits the nascence of new products and techniques would not be possible.