Iscar, Ltd.

Elizer Nessel

Reuven Porat

A cutting insert of the disposable kind and which can be used to provide positive rake cutting action when mounted in a negative rake tool holder and having a chip control structure comprising successive descending and chip deflector surfaces effective over a broad range of operational conditions namely a wide range of materials cutting depths and feed rates and such that along every radial section line directed centrally through and in the direction of a central portion of the insert no surface is directed upwardly with respect to a preceding surface while along every section line directed normally with respect to a cutting edge of the insert at least one deflector surface slopes upwardly with respect to or is substantially parallel to a base surface.

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Haifa, Israel

Elizer Nessel