METHOD OF MAKING A COATED CUTTING TOOL AND CUTTING TOOL THEREOF

The invention relates to a method of making a coated cutting tool comprising providing a substrate, and coating said substrate with a coating process wherein the coating process comprises at least one sequence comprising the steps of: depositing a non-metallic, functional layer or layer system, subjecting the surface of said non-metallic layer or layer system to an ion etching step, depositing at least one metallic interlayer, prior to the beginning of a new sequence. The method according to the invention makes it possible to achieve cutting tools with an increased tool life time. The invention also relates to a coated cutting tool made according to the method.