CUTTING TOOL

There is provided a cutting tool (100) in which chip control is improved. A cutting edge member (20) includes a first wall surface (20B1) which includes a concave surface which is formed to be depressed in a direction away from an intersection point (P) of an imaginary plane (IP) and a corner portion (20C1) and toward the center (AX) of a cutting insert (10) in an end view when viewed from a direction facing an end surface (20U), a second wall surface (20B2) 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 (20B3) 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 (20B4) 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 (20S).