Patent ID: 8596934

Claim:
A milling insert for center cutting milling of material, which milling insert is arranged to be arranged in a seat that is defined by a milling cutter body and situated at a rotation axis defined by the milling cutter body, the milling cutter body being connectable to a rotatable spindle or holder, the milling insert comprising: a plurality of cutting edges, where at least one first cutting edge of the plurality of cutting edges is terminated in or adjacent to a center axis that is defined by the milling insert and, when the milling insert is arranged in the seat, intended to coincide with the rotation axis of the milling cutter body, the first cutting edge comprises a first cutting edge portion having a first radius from a first axis, wherein the first radius has a distance that is essentially equal for each point of the first cutting edge portion, and at least one second cutting edge portion that is plane or has at least one second radius from a second axis for each point of the respective second cutting edge portion, the at least one second radius being greater than the first radius, wherein the at least one second cutting edge portion is situated between the first cutting edge portion and the center axis, one of the at least one second cutting edge portion adjoins the first cutting edge portion, and one of the at least one second cutting edge portion is terminated in or adjacent to the center axis.