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This is a Bergeon 4055 assortment of 12 straightening banking pins, a professional Swiss-made tool set designed for checking and adjusting the clearance between the guard pin and the fork slot in watch escapements.
These precision pins are used to straighten bent banking pins on pallet forks, ensuring proper interaction between the pallet fork and the safety roller.
With diameters ranging from 0.28mm to 0.55mm and a length of 100mm, this set provides the essential tools for watchmakers to restore escapement function during movement servicing.
12 Precision Banking Pins – Diameters 0.28mm to 0.55mm, covering common sizes.
Straighten Bent Pins – Corrects bent banking pins on pallet forks to restore escapement precision.
Swiss Precision – Genuine Bergeon quality, accurate dimensions, smooth finish.
100mm Length – Provides ample length for handling and leverage.
Specialized for Watchmaking – Essential tool for escapement adjustment and repair.
| Parameter | Details |
|---|---|
| Model | Bergeon 4055 |
| Quantity | 12 pieces |
| Diameter Range | 0.28 mm – 0.55 mm |
| Length | 100 mm |
| Material | Precision steel |
| Use | Straightening banking pins on pallet forks |
| Origin | Switzerland |
Straightening bent banking pins on pallet forks in watch repair
Checking and adjusting guard pin vs. fork slot clearance for safe escapement operation
Professional watch workshops, brand service centers
1. Is this a genuine Bergeon product?
Yes. It is a Swiss Bergeon factory-original model 4055, brand new.
2. What are banking pins?
Banking pins are small pins on the pallet fork that limit its swing angle, working with the fork slot to prevent overshoot of the escapement.
3. How do I use these straightening pins?
Slide a pin of appropriate diameter over the bent banking pin and gently straighten it. Work carefully to avoid breaking the pin.
4. Does the set include other tools?
No, this set includes only the 12 straightening pins. Holding tools or loupes are sold separately.
5. How do I choose the correct diameter?
Select a pin that just fits over the banking pin (slightly smaller or matching). Start with the smallest diameter that engages.
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