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/diy/ - Do It Yourself

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>> No.1281406 [View]
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1281406

Hey /diy. I need som help. Im a blacksmith whose used coal and charcoal for many years. And im switching to propane for a more efficient smelting method. Problem is the pin hole for the gas to escape. Whats the correct drill bit to use? Ill have oxygen control. So i can get the ratios right. But i dont want too much propane. Ive heard 1/32, but i dont know it thats just common hearing because its conveinient. Is there a more efficient size? Thanks~

P.s. pic is my current setup.

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