The work is devoted to improving the productivity and quality of surfaces when cutting metal blanks with saw blade due to the development of the design of cutting cutters with multidirectional teeth and the definition of rational processing modes. On the basis of the general provisions of the theory of cutting and design of cutting tools, the design of the tool has been developed and the geometric parameters of the cutting part in the process of its operation are investigated. Based on the theory of forming surfaces, the methods of determining the parameters of the cut layer using 3D modeling using systems of solid-state geometric modeling and analytical modeling are developed, the parameters of the cut layer are investigated, on the basis of which the boundary processing modes and geometric parameters of the tool are determined. Conducted laboratory tests aimed at testing of theoretical studies, made it possible to obtain analytical dependence of characteristics of processing process and quality of obtained parts. Production verification of research results confirmed the results of theoretical research.