Relentless Knives Straight Fillet Knife -Designed for professionals who demand uncompromising performance, the Relentless 6--Inch Straight Fillet Knife delivers surgical-level control in a streamlined, field-ready form. The straight-edge profile provides maximum contact and directional accuracy along the spine and rib cage, making it ideal for detailed fish filleting, meat breakdown, and fine trimming. Dialed-in flex strikes the perfect balance between rigidity and yield—ensuring clean passes even on delicate species. Perpetual Edge Technology NeverRust Titanium Blade 100% aerospace grade titanium blade SlickCut Anti- Friction Treatment True Grit Glass- Reinforced Handle The handle is made of a glass reinforced ABS but covered with the same gritty material used to create the non-slip surface found adjacent to swimming pools