Absolutely fishing pliers. The split on the end is to twist a hook. I remeber getting a set at JACK's SURPLUS CITY ( a great local store for a 13 year old) in the late 60's. Usually find these in the bottom of rusty tackle boxes. One of those tools that is only marked JAPAN. If I can get to my old fishing stuff, I'll check my set for any markings.---YES I STILL HAVE THEM! I am a packrat!!