Gas Service: Acetylene, Oxygen Regulators: G350-150-540, Fuel Gas Regulator: G350-15-300 Cutting Tip: 1-1-101 Welding Nozzle: 2-UM-350.Maximum Cutting: 8 inches. Maximum Welding: 3 inches CA411-1 Cutting Attachment.Cuts up to 3/8" / 12.7mm 6" / 76.2mm with optional tips industries-Industrial and general fabrication, light fabrication, repair and maintenance,structural steel fabrication