Columbia River Knife & Tool TUNA, 3.22 Folding Knife, Plain Edge, 8Cr14MoV Blade, Stonewash Finish, Stainless Steel and G10 Handle 2520 With a profile that suggests strong forward momentum and a blade shape that looks like a deep-sea carnivore" the Tuna(TM) everyday carry folding knife slices through packages and boxes faster than a Bluefin slices through the swell on a taut line.