Knipex Retaining Ring Pliers - 45 21 200
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Product Information
Full details
The Knipex 8-inch angled retaining ring pliers are an essential tool for automotive technicians and industrial mechanics tasked with installing horseshoe-shaped spring retaining rings and circlips that lack grip holes. These professional-grade pliers provide superior control and precision when securing components like drive shafts in vehicle gearboxes, though they are specifically limited to rings larger than 12.0 mm, making them less suitable for smaller, precision-electronics tasks.
All features
| Model Part Number | 45 21 200 |
|---|---|
| Brand | Knipex |
Extended Product Information
FAQs
Can these pliers be used for standard circlips with grip holes?
No, these pliers are specifically designed for horseshoe-shaped rings that do not have grip holes.
What is the minimum ring size these pliers can handle?
These pliers are designed for snap rings with a diameter larger than 12.0 mm.
Are these pliers suitable for transmission work?
Yes, they are ideal for securing drive shafts and other components within vehicle gearboxes.
What material are these pliers made from?
They are forged from oil-hardened chrome vanadium electric steel for professional-grade strength.
Does the tool come with a spring for opening?
Yes, an integrated opening spring is built into the handle to assist with repetitive tasks.
Troubleshooting
The pliers are slipping off the ring during installation.
Verify that the ring size is at least 12.0 mm and the split gap is at least 3/32 inches; the tool cannot securely grip rings smaller than these specifications.
The opening spring feels stiff or sticky.
Clean the pivot area with a degreaser and apply a drop of light machine oil to the joint to restore smooth spring tension.
Surface rust appearing on the jaws.
The black-oxide finish is durable but can be compromised by moisture. Clean the area with a wire brush and apply a thin layer of rust-preventative oil.
Pros and Cons
Pros
- Durable chrome vanadium steel construction
- Ergonomic opening spring reduces hand fatigue
- Specialized angled head reaches restricted spaces
- Highly secure grip on rings without holes
- Corrosion-resistant finish
Cons
- Limited to rings larger than 12.0 mm
- Not intended for circlips that have standard grip holes
- Fixed jaw angle may not suit every specific mechanical orientation
Setup, Compatibility & Care
These pliers do not require special assembly; they are ready for use immediately out of the packaging. Ensure compatibility by verifying that your specific snap ring has a diameter greater than 12.0 mm and a split gap of at least 3/32 inches.
Maintenance Tips:
- Regularly wipe the jaws clean of grease and debris to ensure the centering hole remains unobstructed.
- Store in a dry, tool-organized environment to maintain the black-oxide finish.
- Occasionally apply a light coat of machine oil to the pivot joint to keep the opening spring action smooth.