The invention relates to a knife blade for a cutting knife of an agricultural harvesting machine, comprising a blade top side and blade bottom side. A surface of the blade bottom side is composed of a flat surface arranged in a plane and a cut-out region extending above the plane. A height of the knife blade corresponds to a maximum distance between the blade top side and the flat surface in a direction normal to the plane. A material thickness of the knife blade corresponds to a distance between the blade top side and the blade bottom side. The invention further relates to a method for producing a knife blade.
