There are not many consumables that you will need for a plasma cutter. The first and most basic consumable that you will need is a retaining cap, which essentially holds all the other parts together. The next is a nozzle, which focuses the arc and gas flow direction. After the nozzle, we have the electrode that carries the current. Next is the swirl ring, which transports the gas through the torch. And last but not least, you have the shield which helps protect all that was mentioned above.