| abstract |
A kind of surface-coated cutting tool, the surface-coated cutting tool are formed with hard coating layer in the surface for the tool base being made of tungsten carbide base carbide alloy vapor deposition, wherein it is 0.5~10 μm of (Ti that hard coating layer, which has at least one layer of average layer thickness, 1‑ X Al X ) N layers, wherein 0.4≤X≤0.7, X is atomic ratio, (the Ti, Al) there is cubic crystal structure N layers, the average value of absorptivity of the hard coating layer at 400~500nm of wavelength is set as Ia (%), when the average value of the absorptivity under 600~700nm of wavelength is set as Ib (%), meets the relationship of Ia-Ib < 5. |