FIELD: machining of metals. SUBSTANCE: axial cylindrical groove and location guiding surface are first cut in billet of cutting unit of tool, then - its technological center. After them longitudinal picks are made in part of length of billet and tail with technological center being left on its working butt. Lengths of mentioned picks is not less than maximal length of blanks of cutting plates with provision of outlet of space of picks into space of internal axial cylindrical groove. Final finishing of members of working part of tool to finishing dimensions over its diameter is carried out after their installation and anchoring with the aid of technological center in tail that is removed with formation of face cutting edges of tool. EFFECT: simplified design of tool, increased rigidity of joining of its members and enhanced accuracy of completion of finishing dimensions of tool, its reliability and prolonged operational time. 2 cl, 5 dwg
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