CUTTING TOOL

摘要

A cutting tool having a region configured by a super-hard material, the cutting tool having a structure in which the region is provided with a rake face (4), a flank face (5), and a cutting blade (6). The area of the rake face (4) running along the cutting blade (6) is denoted as (A), the area of the rake face excluding the area (A) is denoted as (B), the surface roughness of the area (A) is less than the surface roughness of the area (B), and the area (B) is depressed in from the position of the area (A).