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 : structure and principle of operation of similar lathes; names, purposes and conditions of use of the most common universal devices; structure of simple and medium complexity control and measuring tools; purpose and rules of use of normal and special cutting tools; angles, rules of sharpening and installation of cutters and drills; basics of knowledge about tolerances and fits, qualities and parameters of roughness (classes of accuracy and cleanliness of processing); purpose and properties of cooling and lubricating fluids, information on the basics of electrical engineering, materials science, technical drawing, etc.