Ya, I know about the half joking part. It's surprising, as in dang that's hot, how fast a blade will heat up just by friction with the belt. I've repeated the heat treatment on blades with a a fine edge but you have to bring them up to heat slowly and carefully or you end up with something that looks like a potato chip. You might as well give it a try the worst that you can do is ruin a ruined blade.
Doug
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