Cutting insert geometry

A cutting insert for installation in carrier tools for machining workpieces, comprising a top side, a bottom side, and side surfaces connecting the top side and the bottom side, wherein a peripheral protective chamfer having an upper edge adjoining the top side of the cutting insert and having a lower edge adjoining the side surfaces is arranged at the transition from the top side to the side surfaces, wherein the upper edge forms cutting edges and cutting corners and, in the region of the cutting edges, the lower edge transitions into the side surfaces that form cutting-edge clearance angle surfaces having an edge clearance angle of 3° to 11°, and wherein, in the region of the cutting corners, the lower edge of the protective chamfer transitions into a corner clearance angle surfaces having an edge clearance angle of 3° to 5°, and wherein a trailing cutting edge is arranged between the corner clearance angle surface and the cutting-edge clearance angle surface, wherein the trailing cutting edge adjoins the lower edge of the protective chamfer and the corner clearance angle surface and the cutting-edge clearance angle surface, and wherein the length of the trailing cutting edge at the lower edge of the protective chamfer is between 0.2 and 1.0 mm.