Description We developed the Kazan line in partnership with a steelmaker in Kansai, Japan using HAP40, a powdered steel blend featuring high levels of Vanadium, Molybdenum, Cobalt and Tungsten. This results in a semi-stainless blade with exceptional edge retention. The blade is hand sharpened on several stones for great out the box sharpness. Kazan features a hammered tsuchime finish, which prevents food from sticking to the blade. It's medium weight and has a beautiful gray wood handle, designed to be a bit more substantial than other Japanese knives so it's comfortable for those with larger hands. Kazan is made exclusively for Chubo. Why we love them: Kazan HAP40 stays sharp forever. They hold an edge better than any knife on our site and despite their incredible hardness, they are very responsive to sharpening stones. Save 10% off the regular price of $399 when buying as a set. Set includes: Gyutou 210mm (8.2") x 1 and Petty 150mm (5.9") x 1 Specifications Handle material Pressed Wood Blade length 210mm (8.2") / 150 mm (5.9") Thickness at spine 2 mm Thickness at tip 0.7 mm Hardness (Rockwell scale) 65 to 66 Edge / Bevel Double (70/30) Use & Care Handwash in warm water and towel dry Do not cut frozen foods Use a sharpening stone, not a honing steel, to re-sharpen your Japanese chef knives