Thanks to Ed Schempp, Matus Kalisky, and Chin Lim for becoming Knife Steel Nerds Patreon supporters! Your support allows us to fund CATRA studies.  CATRA Update 1/6/2020: I have since written more articles about CATRA looking at the effect of steel type: Part 1 and Part 2 Cutlery and Allied Trades Research Association (CATRA) makes … Continue reading Maximizing Edge Retention – What CATRA Reveals about the Optimum Edge