Relentless Knives Fillet Knife Straight 6" RKN. 25" (31.12cm) overall. 6" (15.24cm) blade. Titanium blade with micro-serrated carrbide cutting edge. Perpetual Edge technology. Each knife is made of aerospace grade titanium and features a hard carbide and crushed diamond power strip creating a perpetual edge knife that sharpens as it cuts. True Grit ABS handle. Black leather belt sheath. Boxed with hanging tab. Specifications for Relentless Knives Fillet Knife Straight 6: Manufacturer: Relentless Knives Blade Length: 15.24 cm 6 in Overall Length: 31.1 in 12.25 in Package Contents: Relentless Knives Fillet Knife Straight