... ,21mm*12mm*6mm,23.8mm*13.5mm*7mm are iron grommet )17.5mm*10mm*5.5mm,21mm*12mm*6mm,23.8mm ... *12mm*8.6mm, are for brass grommet)die for grommet machine is optional.It is good punching machine in advertisement industry . It is avoid ... , Net weight:8kgs/sets, Gross Weight: 18kgs Eyelet puncher Punching machine Punching machine grommet machine