SURFACE COATED CUTTING TOOL HAVING HARD COATING LAYER EXHIBITING EXCELLENT CHIPPING RESISTANCE

A surface coated cutting tool is provided, in which a TiAlCN layer having an average layer thickness of 2.0 to 20.0 µm and represented by (Ti(1-x)Alx)(CyN(1-y)) is provided on a surface of a tool body 100, an average content ratio xavg of Al and an average content ratio yavg of C satisfy 0.60 ≤ xavg ≤ 0.95 and 0.00 ≤ yavg ≤ 0.05, an area ratio occupied by crystal grains having an NaCl-type face-centered cubic structure satisfies 90 area% or more, and when a crystal grain size d of each crystal grain in an upper layer side region obtained by bisecting the TiAlCN layer in a layer thickness direction is obtained, crystal grains 21 satisfying 0.01 µm