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case hardening steel
annealing steel
heat treating knives
metal tempering
heat treatment oven
how to harden stainless steel
heat treating steel
Learn how to easily and properly heat treat / temper hand tools, small knives, etc. All that's required is a propane or MAPP gas ...
481,133 views
6 years ago
... I show the hardening and tempering process for a hot cut chisel, the same process could be used for tempering most hand tools ...
686,785 views
7 years ago