I’ve been fishing several times where I caught a keeper and had to make due with a Leatherman to get the fillets on the grill. My fillet knife was in my other tackle box at home (yes I’m an idiot). The point is that everyone needs a fillet knife that stays in the camp box. The Case Knives Hunter Fillet Knife is a solid choice.
It has a Tru-Sharp Surgical Steel blade and a contoured synthetic handle that is easy to keep clean. There aren’t any parts of the knife that will rust, so it will take a beating for years to come. The blade has just the right amount of flex for cleaning fish as well.