Surface-coated cutting tool and method of manufacturing the same

A surface-coated cutting tool, comprising:

• a cutting tool body made of tungsten carbide-based cemented carbide;
• and
• a hard coating layer deposited on a surface of the cutting tool body, wherein
• (a) the hard coating layer has at least one (Ti, Al)N layer with an average layer thickness of 0.5 to 10 μm,
• in a case where a composition of the (Ti, Al)N layer is expressed by a composition formula:
• (Ti1-xAlx)N, X is an atomic ratio which satisfies 0.4≦X≦0.7, and
• the (Ti, Al)N layer has a cubic crystal structure, and
• (b) in a case where an optical absorption spectrum of a surface of the hard coating layer is measured using a spectrophotometer, Ia (%) is an average absorptance at a wavelength of 400 to 500 nm, Ib (%) is an average absorptance at a wavelength of 600 to 700 nm, and (Ia−Ib)<5 is satisfied.