"One of the most popular I.O. Shen Chef’s Knife, excellence designed, very well balanced and comfortable, easy to get clean-cut fruit, vegetables, and meats, keep the moistures and nutrients intact, easy and fun to prep delicious foods in no time. I.O. Shen has overcome the brittleness of hard steel, using a layer of super-hard steel (Rockwell 62°), sandwiched between two layers of softer stainless steel (Rockwell 10°) to produce the ultimate cutting edge. We call this Triplex Steel Technology. I.O.Shen Mastergrade built all knives using the latest technology so that it is not only amazingly sharp but will retain the edge sharpness for a phenomenal amount of time. Handcrafted by our Master attained to 15° angle edge, slicing becomes easy and fun. Each I.O.Shen knife has been carefully handcrafted and took an average of 7 hours hand-finished.