Description
- 6 Round Expansion Dies — Supports different bracelet diameters for versatile bangle sizing and adjustment work.
- Heavy-Duty 17kg Construction — Solid metal body and stable bench design provide reliable performance for repeated workshop use.
- Long Operating Handle — Allows gradual and even expansion during bangle sizing for controlled, consistent results.
- Better Control Than Mandrels — Offers more precise control for professional jewelry repair and bracelet adjustment compared with simple bracelet mandrels.
- Bench-Mount Design — Stable bench installation for consistent, repeatable bangle expansion work in jewelry repair shops and goldsmith studios.
The Tooltos Bangle Size Expander with 6 Round Dies is a heavy-duty manual bracelet stretcher designed for enlarging and adjusting metal bangles in jewelry repair shops, goldsmith workshops and small jewelry studios. The 6 round expansion dies support different bracelet diameters, while the long operating handle allows gradual and even expansion with controlled manual pressure. Suitable for gold, silver, copper and brass bangles.
Best For / Not For
| Best For | Not For |
|---|---|
| Bangle and bracelet size expansion and adjustment Gold, silver, copper and brass bangles Jewelry repair shops and goldsmith workshops Jewelers, silversmiths and bracelet makers Repeated professional bangle sizing work |
Steel or titanium bangles Stone-set bangles (risk of loosening settings) Hollow, plated, cracked or fragile bangles Ring sizing (use Tooltos ring stretcher range) Excessive single-pass expansion |
Technical Specifications
| Expansion Dies | 6 round dies |
| Machine Dimensions | 340 × 180 × 290mm |
| Machine Weight | 17 kg / 37.5 lb |
| Operation | Manual (long operating handle, no power required) |
| Suitable Metals | Gold, silver, copper, brass and other soft non-ferrous metals |
Pro Tips
- Expand the bangle slowly and check the size frequently — avoid applying excessive force in a single pass.
- Anneal the bangle before expanding to reduce the risk of cracking, especially for work-hardened metals.
- Inspect the bangle carefully before sizing — do not use on cracked, hollow, plated or fragile pieces.
- For stone-set bangles, remove stones before expanding where possible to protect the settings.
Frequently Asked Questions
What is the difference between this and a bracelet mandrel?
This bangle expander offers more precise, controlled expansion than a simple bracelet mandrel. The 6 round dies and long operating handle allow gradual, even pressure for professional jewelry repair work.
Can this machine be used for ring sizing?
No. This machine is designed specifically for bangles and bracelets. For ring sizing, see the Tooltos ring stretcher expander and reducer range.
Can it work on stone-set bangles?
Use caution. Expanding bangles with set stones risks loosening or damaging the settings. Remove stones before sizing where possible.
What metals can this machine work with?
Gold, silver, copper, brass and other soft non-ferrous metals. Not recommended for steel, titanium, hollow, plated, cracked or fragile bangles.
What expansion range does this machine cover?
For detailed expansion range and compatible bangle sizes, contact the Tooltos team at sales@tooltos.com before ordering.
What's Included
- 1 x Tooltos Bangle Size Expander Machine
- 6 x Round Expansion Dies
Support
For technical questions, expansion range details or order support, contact the Tooltos team at sales@tooltos.com. We typically respond within 24 hours.





