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THIS PROCESS CAN BE DANGEROUS! WEAR GAUNTLETS, SAFETY GOGGLES AND AN APRON AT ALL TIMES! Heat-treating a knife blade is actually quite simple, if you just follow ’the recipe’. There’s lots of overly-complicated recipes floating around, so I thought I would show you a method that I’ve used and proven for O1 tool steel. Here’s a list of tools that you’ll need: O1 Tool Steel: Channel Locks: Bernzomatic MAPP torch: Canola Oil (get 3 or 4):
