Patent ID: 11759871

Abstract:
There is provided a cutting tool in which chip control is improved. A cutting edge member includes a first wall surface which includes a concave surface which is formed to be depressed in a direction away from an intersection point of an imaginary plane and a corner portion and toward the center of a cutting insert in an end view when viewed from a direction facing an end surface, a second wall surface which includes a convex surface which is provided to be connected to the first wall surface at a position spaced apart from the imaginary plane and is protruded in a direction away from the center of the cutting insert in the end view, a third wall surface which includes a convex surface which is provided to be connected to the first wall surface at a position spaced apart from the imaginary plane on an opposite side to the second wall surface across the imaginary plane and is protruded in a direction away from the center of the cutting insert in the end view, and a fourth wall surface which is provided in an area between the first wall surface and the intersection point in the end view, includes a convex surface which is protruded in a direction away from the center of the cutting insert in the end view, and has a height smaller than heights of the second wall surface and the third wall surface in a side view when viewed from a direction facing a side surface.