Plier, Cirlip, Internal Bent

Quick Answer: An internal circlip plier has tips that close together when the handles are squeezed, so it can compress an internal circlip and fit or remove it from a groove inside a bore. On this bent-tip internal circlip plier the tips are angled to reach rings in recessed or obstructed housings.

Compressing a Ring Inside a Bore

An internal circlip is a split spring-steel ring that sits in a groove cut inside a bore, holding a bearing, bush or shaft assembly in place. At each end of the ring is a lug with a small hole. The plier tips go into these holes, and squeezing the handles draws the tips together, reducing the ring’s diameter until it slides out of or into its groove.

The bend in the tips lets the user see the ring and keep the handles clear of the housing when the ring lies deep in a bore, behind a flange or close to other parts. The bend angle of this model is not in its title and can be confirmed. Where the ring can be reached from straight in front, the straight-tip internal plier gives a more direct, in-line push.

Internal pliers work only on internal rings. External circlips, which sit in a groove on a shaft, need pliers whose tips open when the handles are squeezed; the wrong type cannot hold the ring properly.

Care & Handling

• Wear safety glasses; a circlip that slips off the tips can spring out with force.
• Seat the tips fully in the lug holes and compress only as far as needed to clear the groove.
• Replace circlips that have been over-compressed or bent rather than refitting them.
• Keep the tips clean and check they are not bent or worn round.

Specifications

Applications

• Removing and refitting bearing retaining rings in gearbox and pump housings
• Dismantling hydraulic and pneumatic cylinders during mechanical training
• Automobile workshop practicals on wheel bearings and transmission parts
• Servicing small machines where the circlip sits deep inside a recess

Why Choose LabEquip

Automobile and mechanical engineering workshops, TVET centres and maintenance technicians need internal circlip pliers whenever bearings and housings are serviced. LabEquip supplies this bent-tip version from its general lab products; tip sizes can be discussed on the contact page.

Frequently Asked Questions

What is the difference between internal and external circlip pliers?

Internal pliers close their tips when the handles are squeezed, to compress a ring sitting inside a bore. External pliers open their tips when squeezed, to expand a ring that sits on a shaft.

When should I choose bent tips over straight tips?

Bent tips suit rings that are deep in a bore, close to a flange or partly hidden, because the handles stay clear and the ring stays in view. Straight tips are simpler where the ring is directly accessible.

Why does the circlip keep flying off?

The tips may be too small for the lug holes, not pushed fully in or worn, or the ring may be compressed further than needed. Use matching tips, hold the plier square to the ring and wear eye protection.

Can a used circlip be refitted?

If it still sits firmly in its groove and is not bent or overstretched, it can be reused. A ring that has been deformed or feels loose in the groove should be replaced, since it may let the part move.

How do I choose the right tip size?

The tips should fill the lug holes of the ring without being forced. Tips that are too thin can bend or slip; tips that are too thick will not enter the holes.

Can I use the plier to lever a stuck bearing out?

No. The plier is made only to compress the ring, and prising with the tips bends or snaps them. Remove the circlip first, then use a puller or press to move the bearing.

Last Updated: September 2026