Patent ID: 7498089

Claim:
A coated cutting tool equipped with a substrate and a coating formed on said substrate, wherein: said coating is formed from at least two coating layers; a first layer of said coating layers contains a compound formed from elements Al and Cr and at least one element selected from a group consisting of carbon, nitrogen, oxygen, and boron; a second layer of said coating layers contains a compound formed from: at least one element selected from a group consisting of a group IVa element, a group Va element, a group VIa element, and Si; and at least one element selected from a group consisting of carbon, nitrogen, oxygen, and boron; and at least one of said coating layers contains chlorine, wherein a concentration of said chlorine in said coating is at least 0.0001 percent by mass and no more than 1 percent by mass, and wherein said second layer is formed closer than said first layer toward the substrate.