I.O.Shen Knives have used Triplex Steel Technology to construct a blade that is not only amazingly sharp but will also retain the edge for a phenomenal amount of time. A layer of super hard steel is sandwiched between two layers of softer stainless steel to produce the ultimate cutting edge. The softer layers act as protective shock absorbers to the VG10 Steel core cutting layer with a Rockwell Hardness of 62. Handcrafted by master craftsmen using Japanese steel & Tai Tang design handles, I.O.Shen Knives are easily distinguishable from other knives. The Tai Teng handle is not simply an embellishment as it is an essential factor in achieving beautiful balance & stability. An excellent choice for both industry & home use.