DIN 3972, milling cutters 1 to 8, milling cutter 1 for 12-13 teeth, milling cutter 2 for 14-16 teeth, milling cutter 3 for 17-20 teeth, milling cutter 4 for 21-25 teeth, milling cutter 5 for 26-34 teeth, milling cutter 6 for 35-54 teeth, milling cutter 7 for 55-135 teeth, milling cutter 8 for 136-infinite teeth