Cutting Tip Compatible Fuel Type MAPP Propylene Tip Series O-FH Tip Size 65 Tip Design Two Piece Minimum Cutting Thickness 3/8 in Maximum Cutting Thickness 5/8 in Compatible Manufacturer Oxweld Flame Type Medium to Heavy Preheat Pressure Rating (Fuel) 5 to 10 psi Pressure Rating (Oxygen) 35 to 45 psi