The centre torch has 6 jets for fine detail work while the outer fire has 12 jets , ideal for boro up to 44mm dia borosilicate tubing and all your soft glass needs .Marble makers will love it but it will need either oxygen cylinders or 3 reconditioned oxy-cons or 1 new 10ltr oxy-con and 1 5ltr oxy-con to run.
You will also need an oxygen splitter and propane splitter to run this torch as there are two oxygen and propane hoses running to the torch.