Cutting Tip Compatible Fuel Type MAPP For Torch Type Machine Tip Series 6290H-FH Tip Size 56 Tip Design Two Piece Minimum Cutting Thickness 1 in Maximum Cutting Thickness 2 in Compatible Manufacturer Harris Application High Speed Flame Type Medium Preheat Pressure Rating (Fuel) 4 oz to 2 psi Pressure Rating (Oxygen) 40 to 55 psi