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Thanks for clarification on some stuff. I've seen some yupube forges made out of coffee tins and fireproof material, and als some that use firebrick in a hole in the ground with a shopvac blowing over coals, they seem easy to make but not sure about the safety level of them. I have some O-1 tool steel and was hoping to be working with it, since it's readily available and is not super expensive. Are there better steels that are easier to work with regarding heat treating and tempering?
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