These nippers are hand-sharpened for a razor's edge to slice easily through line. Blades can be resharpened, and the enclosed eye pin cleans hook eyes.
It's a good product that is functional, but give it a day of cutting 5x or 6x fluro tippet, and it might still be able to nick 4x mono by the time the day's done. spend more for something that will last more than one daytrip before needing to be resharpened.