INSERT AND CUTTING TOOL PROVIDED WITH SAME

摘要

An insert of the present disclosure includes a base and a coating layer covering a surface of the base. The base includes a hard phase containing a carbonitride including Ti and a binder phase containing Co. A CTiW compound that contains C, Ti, and W and satisfies the relation of C > Ti > W is positioned between the base and the coating layer. A cutting tool of the present disclosure includes a holder extending from a first end to a second end and having a pocket on the first end side, and the insert positioned in the pocket positioned in the pocket.