Internal snap ring pliers are designed exclusively to install internal circlips inside a hollow, cylindrical shaft or bore, which provide locking support in either the radial or axial direction. These pliers use long jaws that extend slightly into the channel so that they can apply pressure to both sides of the ring simultaneously.

Internal retaining ring pliers are used in various industries including energy, bicycle, and automotive industries. The major uses for these tools include combustion engines, bike chains, transmissions, suspension arms, tensioners, springs and rigging.