PT31 SHORT TIP
The PT31 Short tip / nozzle is a copper coated tip with a 1mm hole in the front where the air is forced through at high pressure, combined with the electric charge to produce the changing of the air to a gas (Plasma State). As this torch does not have the capability of high frequency, the nozzle has to make contact with the metal to be cut and then dragged along the work piece to be cut. The tip has a + looking depression on the front to allow for extra air to blow the molten metal out of its path. Again, the lifespan depends on the operator of the torch.
The short tip is often preferred by operators who are using a length of angle iron as a straight edge as the shield cup is close enough to ensure the short nozzle doesn’t arc on the metal angle iron.