Heat Treating
Sheath Making

Heat Treating Knives

blade wrapped in stainless steel foil blade and combustible ready to wrap ready to close up
sealed blade, edges pounded plate quenching cooled blades on aluminum plate
clamping aluminum plates on hot blades heat-treat furnace blades in furnace
furnace glows orange removing after soaking at quench temperature opening blade
heat-treated blalde cooling blades blades ready to be tested
self-explanatory testing the hardness of each blade  testing on the Rockwell C scale
closeup of measurement