Relentless Knives Curved Titanium Fillet KnivesFor centuries, knife makers have tried to solve the problem of "edge dulling" by focusing on improving the rate of wear by making the blade as hard as possible so it wears more slowly and stays sharp as long as possible. The problem with this approach is that the blade edge will become dull and the harder the blade, the harder it is to sharpen, and the more brittle the edge. Relentless Knives feature a 100% aerospace grade titanium blade. Titanium is