Revolutionary FC61 steel core features fine carbide distribution and is protected by a durable 48 layers of damast steel Fine carbide distribution creates a razor-sharp and durable blade with a 61 Rockwell hardness Double ice-hardened FRIODUR blade offers remarkable durability and cutting edge retention Blade is hand-honed using the historic Honbazuke method to an exceptionally sharp 9.5 to 12 degrees Authentic, thin Japanese blade profile MIYABI moves one step closer to perfection with Kaizen II – Japanese for “improvement” or "change for the better." The Kaizen II collection boasts traditional Japanese craftsmanship combined with the best hardening technology and beautiful modern design. The core, forged from resilient FC61 super steel, is protected by a stunning 48 layers of stainless steel. And Miyabi Kaizen II knives are as beautiful as they are functional. The blades’ gorgeous flower Damascus pattern is dramatically darkened through acid dipping. The double FRIODUR ice-hardened blade makes for improved corrosion resistance and astonishing durability. Artisans hand-hone the blades using the venerable four-step Honbazuke method. This fine attention to detail translates into a work of art that is the ultimate in precision cutting. The blade is balanced by a substantial D-shaped handle made of black pakkawood. Effortless to hold, the classic Japanese “D”-shape handle offers a comfortable grip for stress-free cutting. This striking handle truly matches the caliber of the blade. Handcrafted in Seki, Japan, a city renowned for its highest quality cutlery production.