Chef's agree that you need the right knife for the delicate job of de-boning meat and poultry. Not only should the blade be strong, it should be able to negotiate joints, bones and tendons, without damaging the meat. The Shun Gokujo Boning and Fillet Knife utilizes SG-2, an exotic Japanese powdered steel. The advantage of powdered steel is that every element used to create the steel is evenly blended, eliminating weak spots or imperfections. Clad with two layers of SUS410 steel, it gives additional strength, flexibility and corrosion resistance-all characteristics you've come to expect from Shun.