The Kaentsune Seki Minamoto Kanemasa B-Series Knives are high grade Japanese style Kitchen Knives for professional use. Its blade cutting edge core is made of Hitachi White Steel #3 forge welded with a soft iron for high cutting performance and longer edge retention. The handle of this is Kanetsune Minamoto Kanemasa Yanagiba 270mm is made from traditional magnolia wood with a plastic bolster. The HRC for this knife is 60 or 61. Single-bevel for right-hand users.