This is a 45-port, round torch, configured as a center ring of 16 ports, surrounded by a ring of 27 ports. Flame width can be up to 1.25 inches. A top-mounted burner can be added, either a Minor or a Mega Minor or a Premix* with N11 (11 holes) and N3 tips.
Specs.: Natural Gas and Oxygen or Propane and Oxygen. Use 3/8 inch or 5/16 inch hoses.
*The Premix head is designed to use tips with 7/16 - 24 thread, same as the National Tips, Nortel Ribbon tips, etc.
Premix torch vs. surface-mix. The difference in how the to two torches combine the gases together. A surface mix will compbine the gases on the out outside of the torch, while the pre-mix gases combine inside the torch body.
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