The Victor 6700C2475 Cut Skill LP Propane/Natural Gas 350 Series Cutting Tip is a size 5 two-piece tip used for general purpose hand and machine cutting and other medium preheat applications using LP propane/natural gas. Series 1, Type GPN. Metal Thickness: 4"-5". Preheat Oxygen: 23/108. Fuel: 8/12 PSIG, 20/30 SCFH. Kerf Width: 0.14.