Filleting knife Perfect for deboning, fileting, cuting meats and fish. This filleting knife is flexible. All of our knives come razor sharp from the box. * Material: 15n20 tool steel * Rockwell Hardness: 56 hrc * Handle: american walnut knife was made using stock removal method. Blade was carefully ground on watercooled belt grinder. Preventing unwanted softening. Edge is ground nearly to zero- superb cutting performance. Surface finish fine scotch brite belt. All surfaces exept cutting edge