Tooltos 2-in-1 Ring Stretcher Expander and Reducer | HK Size 6-33 Heavy Duty 12kg Brown
- 99 in stock
Description
- 2-in-1 Expander and Reducer — Expand rings using the 6-segment spline mandrel (HK sizes 6–33) and reduce rings using 8 reduction dies (14–22mm) in one machine.
- Heavy-Duty 12kg Construction — Heavier cast iron body than standard models (9–10kg) for greater stability and rigidity during ring resizing work.
- 14 Expansion Accessories Included — More complete accessory set than standard models for a wider range of ring forming tasks.
- 6-Segment Spline Mandrel — Numbered segments cover HK sizes 6–33 for precise, consistent ring expansion.
- 8 Reduction Dies (14–22mm) — Covers a mid-range reduction capacity suitable for most standard ring sizes.
- Bench Mountable — 4 pre-drilled holes for secure workbench installation. Reversible base plate for switching between expanding and reducing functions.
The Tooltos HK 6-33 Brown Ring Stretcher Expander and Reducer shares the same heavy-duty 12kg cast iron construction and HK 6–33 expanding range as the Gray model, with reduction dies covering 14–22mm. The brown finish and mid-range reduction capacity make it a practical choice for jewelry repair shops working with standard HK ring sizes. Suitable for gold, silver, platinum, copper, brass and other non-ferrous metal rings.
HK 6-33 Brown vs HK 6-33 Gray — Which Should You Choose?
| Feature | HK 6-33 Brown (This) | HK 6-33 Gray |
|---|---|---|
| Color | Brown | Gray |
| Expanding Range | HK 6–33 | HK 6–33 |
| Reduction Die Range | 14–22mm | 16–25mm |
| Max Reduction | 22mm | 25mm |
| Machine Weight | 12 kg | 12 kg |
| Best For | Standard HK ring reduction 14–22mm | Larger ring reduction up to 25mm |
Best For / Not For
| Best For | Not For |
|---|---|
| HK-sized ring expanding and reducing (sizes 6–33) Standard ring reduction 14–22mm Plain band gold, silver and platinum rings Heavy-duty professional jewelry repair shops Coin ring sizing (HK sizes) |
Stone-set rings (risk of damaging settings) Steel or titanium rings US-sized rings (use US 4-14 or US 1-33 models) HK sizes below 6 (use HK 1-33 model) Rings requiring reduction beyond 22mm (use Gray model) |
Technical Specifications
| Material | Cast Iron Body and High Carbon Steel Components |
| Size Standard | HK (Hong Kong) Ring Sizes |
| Expanding Range | HK Size 6–33 (6-segment spline mandrel) |
| Reduction Die Sizes | 14 / 15 / 16 / 17 / 19 / 20 / 21 / 22mm (8 dies) |
| Expansion Accessories | 14 pieces included |
| Machine Dimensions | 135 × 185 × 415mm |
| Machine Weight | 12 kg / 26.5 lb |
| Bench Mounting | 4 pre-drilled holes |
| Base Plate | Reversible (expander / reducer) |
| Color | Brown |
| Suitable Metals | Gold, silver, platinum, copper, brass and other non-ferrous metals |
Pro Tips
- Anneal the ring before expanding or reducing to reduce the risk of cracking, especially for work-hardened metals.
- Expand or reduce gradually in small increments — avoid forcing the ring to the target size in a single pass.
- Mount the machine securely to your workbench using the 4 pre-drilled holes — the 12kg weight provides excellent bench stability.
- Inspect stone-set rings carefully before resizing — if in doubt, remove stones before expanding or reducing.
Frequently Asked Questions
What is the difference between the Brown and Gray HK 6-33 models?
Both models share the same HK 6–33 expanding range, 12kg heavy-duty construction and 14 expansion accessories. The key difference is the reduction die range: the Brown model covers 14–22mm, while the Gray model covers 16–25mm. Choose the Gray model if you need to reduce larger rings up to 25mm.
Can I use this on stone-set rings?
Use caution. Expanding or reducing rings with set stones risks damaging the settings. Remove stones before resizing where possible.
What ring sizes can this machine expand to?
HK sizes 6–33 using the 6-segment spline mandrel.
What sizes can the reducer handle?
The 8 reduction dies cover 14 / 15 / 16 / 17 / 19 / 20 / 21 / 22mm ring diameters.
Can this machine work on titanium or steel rings?
No. This machine is designed for non-ferrous metals only.
Does it need to be bolted to a bench?
Strongly recommended. The machine has 4 pre-drilled mounting holes for secure workbench installation.
What's Included
- 1 x Tooltos Ring Stretcher Expander and Reducer Machine (HK 6-33 Brown)
- 14 x Size Expansion Accessories
- 1 x Reduction Die Set (8 dies: 14–22mm)
- 1 x Control Lever
Support
For technical questions or order support, contact the Tooltos team at sales@tooltos.com. We typically respond within 24 hours.
