For 1/2 inch about 35 psi oxygen should be good. A little higher won't hurt. Propane isn't as dangerous as acetylene, so the pressure can be higher without risk of an explosion. 15 Psi should be OK. As long as you can get the size of flame you want, the pressure is high enough. Use a propane 2 piece tip recommended for 1/2 inch thick material. With propane, the oxygen is turned a little higher than acetylene when setting the flame to get the hottest flame. The oxygen valve on the torch body should be opened all the way and the flame adjusted with the valve on the cutting attachment. It shouldn't take too long to preheat. Experiment a bit and you'll figure out what works best. Dave
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Today's Featured Article - On the Road with Dave Gohl: Deere Departed Friend - by Dave Gohl. Have you ever had to part with a dear friend? It's not easy. If it's due to death, your feelings could be in disarray for days, months or even years. Even now after almost 4 years, I still miss my dad. I remember when I was a kid my dad sometimes would tuck my brother and I in at night and we would ask him questions about his childhood on the farm. To this day, it's some of the best stories I've ever heard. And now, I'm so glad that I asked those questions, and if I were a little smarter i
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