ESAB® Oxweld® Internal 1566 Series Size 4 Two-Piece Alternate Fuels Nozzle has a capacity to cut metal of 4" thick. High-speed tip having a cutting speed of 7 - 13 inches per min features cutting oxygen/preheat oxygen/fuel of 90/25 - 55/5 - 10 PSIG. Tip consumes total oxygen/fuel of 315 - 325/15 - 20 CFH.