The centre torch has 6 jets for fine detail work while the outer fire has 30 jets , ideal for boro rod up to 44mm dia & borosilicate tubing to 80mm dia and all your soft glass needs .Marble makers will love it but it will need either oxygen cylinders or 6 reconditioned oxy-cons or 3 new 10ltr oxy-cons 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.