Patent ID: 8516935
Filing Date: 2013-08-27
Classification: B23B,Y10T

Abstract:
1. A cutting tool, comprising: a cutting insert comprising: a holder comprising: a mounting portion at a front end portion thereof; a first wall surface portion located on an outer peripheral surface of the holder, having a concave-curved surface shape, and extending from a periphery of the mounting portion toward a rear end side of the holder; and an edge portion of the first wall surface portion at a position closest to the mounting portion, extending between a upper end point and a lower end point, wherein the upper end point is higher than the lower end point in a side view; wherein: the cutting insert is mounted on the mounting portion with the cutting edge protruding outward from an outer peripheral surface of the holder; the lower end point is located at a lower position than the cutting edge as viewed from the side surface; and the upper end point is located at a higher position than the cutting edge as viewed from the side surface.