Milling tool for chip removing machining

A milling tool, comprising:

• a basic body rotatable on a primary center axis including front and rear ends, between which there is disposed an envelope surface that is rotationally symmetrical in respect of the center axis;
• a seat formed in a peripheral transition between the envelope surface and the front end and which houses;
• a semi-permanently fixed shim plate including an under side pressed against a bottom of the seat, an upper side formed with a support surface, and a side surface extending between the upper and under sides;
• and
• a replaceable milling insert which includes including an upper side that transforms into a lateral clearance surface via a number of alternately usable cutting edges, and an under side that faces the upper side of the shim plate, the individual cutting edges being equidistantly separated from a secondary center axis that defines the spatial position of the milling insert in the basic body, and one of two cutting edges spaced apart farthest axially away from the basic body being located radially outside the other in order to be active during chip removal at the same time as the other is inactive, wherein the shim plate includes a having an auxiliary cutting edge that is delimited between a chip surface and a clearance surface, the auxiliary cutting edge being located in the area of the inactive cutting edge of the milling insert and projecting laterally in relation to the same.