Cutting tool and cutting machine

摘要

A cutting tool is constituted by a plurality of faces and a tip portion structured with edges of the plural faces, wherein a groove is formed on at least one of the plural faces. The groove is in a grid pattern and a dent portion is formed at some intersections of the grid pattern. Furthermore, a space is secured between one of the ends of the groove and an edge constituted by a cutting face and a flank face. There is thus provided a cutting tool and a cutting machine capable of supplying cutting fluid to a tip of the tool or to a working point at the tip.