For the large fire-breathing' tips, we offer a way to keep your hand from getting too hot. We have found that for tip size #4 and up, you need to get back from the flame, so we make these "long necks" just for that purpose.
The image compares both the standard 4-inch neck that comes on the Meco to the longer 7-inch and 10-inch upgrades. We have done over ¼-inch plate steel with the 10-inch long neck.