Patent ID: 11945034
Assignee: MOLDINO TOOL ENGINEERING, LTD.
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 3:
4. An indexable cutting tool in which the cutting insert according to claim 3 is detachably mounted on an insert mounting seat formed on an outer periphery of a tip end portion of a tool main body which is rotated around an axis in such a manner that a clamp screw which is inserted into the mounting hole is screwed into a screw hole formed in a bottom surface of the insert mounting seat which faces in a tool rotation direction,
wherein, in the insert main body, one polygonal surface of the two polygonal surfaces is caused to serve as a rake face and to face in the tool rotation direction, and the boss surface of the other polygonal surface is closely attached to the bottom surface of the insert mounting seat,
wherein the insert main body is mounted in such a manner that the one corner edge of the one polygonal surface is caused to face an outer periphery side of the tool main body and the one major cutting edge extending from a first end of the one corner edge is caused to face a tip end side of the tool main body, and
wherein, in the bottom surface of the insert mounting seat, accommodation recesses for accommodating the protrusions of the other polygonal surface are formed around an opening of the screw hole.