One of the best things about many of Carl's hole-punches is that you can replace the punching heads and pads. With many competitor's machines you have to buy a new unit if the dies become dull. If you have a Carl punch, it is always a good idea to have a replacement kit on hand for when you need it. That way, your machine isn't out of commission when you go to use it. We offer replacement heads and kits. The disks come six to a pack and the kits also include six disks along with two heads. They are inexpensive so why not stock up and store them in the supply room so you can avoid the panic when you're hole punch becomes dull.