Even on a hand torch, they say to raise the torch when doing things like cutting holes. This is so that if any slag blows back, it doesn't get on the tip. The preheat flames shouldn't touch the steel. I read about the temp the steel has to be for it to cut but don't remember where. On thick plate, propane or natural gas is often better than acetylene because most of the heat(btu's) is in the outer flame enveleope and acts to preheat the plate ahead of the cut better. Acetylene has more btu's in the inner flame. Unless I was cutting 2" thick plate and up, I much prefer acetylene for cutting. Dave
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Today's Featured Article - Search For Spares - by Anthony West (UK). Following on from the aquisition of the old Fordson F, I was very much in need of spares. As a novice though I didn't appreciate the fact that there were so many Fordson tractors made, that all the other makes seem rare by comparison. As far as I was aware a fordson was a fordson and it was only through trial an
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