... cutting surface.3.MOSFET inverter and precision constant current feedback control technology, soft switch, DC output.4.Wide working ... stable cutting current and steady arc.5.Intensive arc, high cutting speed, narrow and smooth kerf, continuous current regulation ... Torch, consumables as followsAccessories12 Tips12 Electrodes7 Cups7 Rings1 Air Filter Regulator2 Hose Hoops1Tubed flap1 Glasses,and so on ...