Cutting insert with sensor arrangement and method for manufacturing a cutting insert

A method of manufacturing a cutting insert for cutting, milling or drilling of metal, the method comprising:

• providing a body with an elongate recess extending along at least a portion of the body, wherein the body includes a substrate, and wherein a first layer covers interior side walls of the recess;
• forming a layer of electrically conductive material covering at least a portion of the body such that electrically conductive material is provided in the recess with the first layer being located between the electrically conductive material in the recess and the substrate;
• and
• subjecting at least a portion of the body to blasting such that electrically conductive material located outside the recess is removed from the body while electrically conductive material remaining in the recess forms a lead extending along the recess, wherein, for at least a depth below which at least a portion of the electrically conductive material is arranged in the recess, a width of the recess measured at the depth between portions of the first layer covering opposite interior side walls of the recess is less than or equal to 80 micrometers.