FIELD: metal cutting tools. SUBSTANCE: tool includes disc milling cutter mounted on milling mandrel and set of spacing clamping rings whose ends are designed for engaging with ends of disc milling cutter. In order to enlarge manufacturing possibilities peripheral cutting portion of disc milling cutter and ends of spacing clamping rings are in the form of turn of screw surface with pitch equal to difference between width of worked groove and height of disc milling cutter. EFFECT: enlarged manufacturing possibilities of tool. 5 dwg
