FRONT FACE COATED CUTTING TOOL AND PRODUCTION METHOD OF THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a front face coated cutting tool having excellent wear resistance and defect resistance, and in addition having attention-seeking function for determining differentiation of a working condition of a tip ridge line part extremely easily.SOLUTION: The front face coated cutting tool according to an embodiment of the invention comprises: a base material; and a coat formed on the base material. The coat includes plural layers, and the outermost surface layer of the plural layers is a titanium boride layer formed of TiB(x, y indicates atom%, satisfying 1.5