Piston Ring Pliers: piston ring mounting pliers are Engine Tools for removing piston rings. Piston ring clamp method of use: the use of piston ring when disassembling pliers, one hand ring, and the mounting clamp ring on kaka, piston ring, one hand holds the hand slightly evenly, make the mounting clamp hand slowly shrink, and piston ring ring card will gradually open, make the piston ring can be removed from the ring grooves or ring groove. When the piston ring is removed and installed with clamps, the force must be even to avoid breaking or damaging the piston ring with excessive force, and to avoid hand injury.