A shearing blade for a cutting device includes a main body that has a seat and a blade insert that is arranged on the seat and forms a cutting wedge, wherein the cutting wedge forms a cutting edge via a flank face and a pressure face at an angle to the flank face. The seat has at least one undercut face that acts in a direction transverse to the flank face. When the blade insert is inserted, the undercut face interacts with at least one form-closure face formed on the blade insert, whereby a form closure taking effect transversely to the flank face is established. The blade insert is fastened to the main body by at least one pin-shaped plug-in connection element, which is oriented perpendicular to the flank face and which is arranged in aligned holes in the main body and in the blade insert.