FIELD: processing of materials by cutting.
SUBSTANCE: group of inventions can be used in making cutting tools for drilling materials. Tool body is provided with a receiving socket for the head on the front end and a plurality of chip removal grooves. Receiving socket for head has supporting surface transverse to longitudinal axis. In supporting surface there is a central recess extending from it in reverse direction. Central recess has a plurality of elastically shifted support sections alternating in circumferential direction with a plurality of intermediate portions and separated therefrom. Each support section has a radially inwardly directed bearing surface, and each intermediate portion has an intermediate surface, intersecting with two adjacent in circumferential direction support surfaces. Rotary cutting tool comprises housing and cutting head installed in it with possibility of disconnection. Cutting head has mounting part equipped with base surface and protruding interaction element. In the assembled position, the interaction element is elastically held in the central recess with thrust against the plurality of support surfaces.
EFFECT: possibility of detachable installation of cutting head, higher efficiency and quality of processing.
23 cl, 8 dwg
