The book provides reference data on materials used in mechanical engineering, inter-operation allowances, tolerances and fits, as well as achievable surface roughness when machining on metal cutting machines, information on cutting tools, technical characteristics of metal cutting machines with a description of the main problems when working on machines, as well as recommendations on the use of cutting fluids when cutting materials. Separate sections of the reference book are devoted to the description of the main automation devices for machine tools, standardization of turning, drilling, milling and other machine tools, economics and organization of production, labor protection and safety when working on machines.