With a simple slide of a switch, the Convertible Truarc Pliers quickly and easily convert from ring compressor (for internal rings) to ring spreader (for external rings). These pliers feature comfort grip handles and an adjustable stop that limits the jaw opening for both external and internal operation. They can be used on internal rings in sizes of .25 to 1-inch (6.5 to 26 mm): and on external rings in sizes of .125 to 1-inch (3 to 26 mm). They come with 5 pairs of interchangeable tips in 3 different sizes, including 2 90°-angle sets for use when clearance to the ring is limited, all packed in a plastic carrying case.