M390 is Böhler's flagship knife steel and one of the most capable powder metallurgy stainless alloys on the market. The high chromium, vanadium, and molybdenum content delivers a steel that resists corrosion aggressively, holds an edge impressively, and takes a mirror finish that few steels can match. It's a natural fit for dress knives and high-end folders where aesthetics and performance need to coexist, and it's become a calling card for makers who want their work to reflect an uncompromising standard. M390 sharpens well on quality stones and repays careful heat treatment with outstanding results.