Cut Tip #1 Nat Gas/Prop Compatible Fuel Type Natural Gas Propane For Torch Type Handheld Machine Tip Series 1-GPN Tip Size 1 Tip Design Two Piece Maximum Cutting Thickness 3/4 in Compatible Cutting Torch Series 63 Compatible Cutting Attachment 780 Compatible Manufacturer Harris Application General Purpose Compatible Torch Manufacturer Part Number 830 850 EC72780 Fuel Flow Rate 10 to 12 scfh (Acetylene) Kerf Width 0.08 in Maximum Cutting Speed 20 in/min