I hand forge the high carbon steel I work with and heat treat it myself in either a propane forge or hi temp furnace. Stainless steels I use the furnace and cryogenic treatment as required. I have a Rockwell hardness tester to confirm hardness requirements. I use a Surface grinder when flatness is required and a milling machine for folder work. I believe in shop efficiency and fewer setup changes, which help keep my prices competitive.