Abstract: A cutter apparatus having: (a) rotary cutters locked on a common horizontal shaft at intervals, (b) a motor for the cutters, (c) a cloth feeder, (d) a cloth piece separator, (e) a first conveyor to transport the cut cloth pieces to discharge them from the cutter apparatus, (f) a cloth length measurer, (g) a sorter to sort out those cut pieces whose measured lengths are greater than a predetermined value, (h) a second conveyor to transport the cut cloth pieces sorted out by the sorter back to the feed side of the cutter apparatus, (i) a controller to supply a drive signal to the sorter when a measured length of the cloth is greater than the predetermined value to thereby cause the sorter to sort out cut pieces of such cloth and also to supply a stop signal to the sorter when a predetermined time has lapsed from the start of sorting to thereby cause the sorter to stop sorting, and (j) a button remover machine located at the feed side.