an unrolling unit 3 arranged after the saw band grinding machine 2 there is also a rolling up unit 4 both the unrolling unit 3 and the rolling up unit 4 comprise a multiplicity of reels or coils 8 from these reels or coils 8 metal bands 6 are first removed and after processing rolled up again in the rolling up unit 4 from the individual metal bands 6 one metal band 7 is formed for this the individual metal bands are bundled so that they lie on top of each other without gaps and are pressed together by pressing roller 19 so that the bands lie flat on each other in the horizontal direction the backs of the metal bands 6 rest on a guide while passing through the saw band grinding machine 2 the guide 5 is described in more detail later with respect to fig4 fig1 thus shows the processing steps of a continuous removal of several metal bands from reels b combining the metal bands to form one flush metal band package c introduction of the metal band package into a grinding machine d a final step of pressing metal package onto the flat guide 5 and e separation of the metal band ground to blank band saw bands and rolling up thereof fig2 shows the actual grinding steps in partial figures a to e element reference numeral 7 denotes.