Cutting Tip Compatible Fuel Type Acetylene For Torch Type Handheld Machine Tip Series 138 Tip Size 5 Tip Design One Piece Maximum Cutting Thickness 2 1/2 in Compatible Manufacturer Airco Application Hand Cutting Machine Cutting Fine Contour Plate Sheet Metal Flame Type Light to Medium Preheat Pressure Rating (Fuel) 3 psi Pressure Rating (Oxygen) 60 psi