Like many others who started out, I started out with the basic gear, A cheap Harbor Freight ASO, some crappy files, and a 1x30 Grinder, Did all of my heat treat by eye in my Charcoal forge.  I have upgraded a lot of my tools since starting out, But the one process I have not been able to upgrade was the heat treatment process. Sure I went from Charcoal to Propane, but I still lacked the temp control and stability of an electric oven.  Till now....  Short of taking up knifemaking a