Abstract: A pair of convertible pliers capable of switching between a first configuration suitable for use with external retaining rings to a second configuration suitable for use with internal retaining rings. The pliers convert from external to internal by operation of a pair of pins disposed in the jaws and capable of being maneuvered by a cam surface inside a knob on the tool such that the tool is convertible from a first position where movement of the handles inward causes the jaws to move inward to a second position where movement of the handles inward causes the jaws to move outward.