Engineered with Perpetual Edge technology, the Relentless Titanium Straight Fillet Knife is sure to make short work of your fish-cleaning tasks, especially groupers and other fish with hard-to-cut, complex spines. First of all, the patented Perpetual Edge technology makes one side of the blade edge harder than the other resulting in different wear rates between the two sides and allowing Relentless knives to sharpen as you cut. Beyond this, this blade is made of aerospace-grade titanium, an extremely lightweight, strong material, with excellent corrosion-resistance. Relentless knives feature razor-sharp, micro-serrated cutting edges. This means its advanced edge has thousands of microscopic, jagged, saw-like protrusions. This gives it extra slicing power you have to experience to believe. Lastly, the glass-reinforced ABS handle features a TruGrit grip, which delivers extreme handling and control and reduces fatigue while slicing and cleaning the day's catch. Perpetual Edge Technology All metal parts are 100% Titanium Micro-serrated cutting edge Glass-reinforced ABS handle TruGrit grip