A special ring opener with two different angles is used. It has both a sharp-angled part that is easy to insert into the ring and an obtuse-angled part that is easy to open wide and keeps it easy to work with. The handle is fitted with a spring to fit the hand and prevent it from falling off, even when working on a rocking ship. The LINE CUTTER has a serrated rub-off structure and can be used for PE cutting. In addition, the tip of the pliers is curved and bent to allow work at a more visible angle.