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Published on Sep 15, 2012
Firebrick . A great invention for high heat insulating small forges for heat treating knives and other blades, melting down precious metals like gold silver and platinum etc....Here's a tip on how you can drill firebrick with a powerdrill loaded up with a hammerdrill bit. No hammerdrilling neccesary, you can also use a paddle bit or a holesaw to make a hole very easily in firebrick