Patent ID: 8568064

Claim:
A combination comprising a support plate and a double-sided indexable cutting insert, wherein the indexable cutting insert can be received and fixed in a seat of a tool and in that case the support plate is between the indexable cutting insert and a face of the seat, wherein the indexable cutting insert is to be fixed on the support plate in a seat, wherein the support plate is of a plate-like basic shape of a round or polygonal outline and with a lower generally flat contact face which can be placed on a face of the seat of the tool and an upper support face carrying the indexable cutting insert, wherein the contact face and the support face are connected together by side walls defining the periphery, wherein the indexable cutting insert has a plateau which is disposed within cutting edges and at a spacing therefrom and which is defined by one or more flat contact faces, wherein upper edges of the support plate that are formed by the transition from the side walls to the support face and the cutting edges on the side of the indexable cutting insert that is towards the support plate are at a spacing of at most 0.5 mm from each other at least in the region beneath an active cutting edge and the regions adjoining same, and wherein the upper edges of the support plate and the cutting edges adjacent thereto involve a varying spacing relative to the plane of the lower contact face, wherein the upper edges and the cutting edges at least in corner regions of a polygonal outline are at a smaller spacing from the plane of the contact face than the plateaux, which bear against each other, of the support face and the cutting insert respectively.