Universal Polisher Coarse for Zirconia,Lithium Disllicarte,Composite,Veneer etc
**Material: Flexible silicone‑rubber bonding matrix impregnated with industrial diamond abrasive grains, with metal 2.35 mm HP shank core**
**Key Features**
1. Flexible spiral‑structured rubber‑bonded diamond abrasive wheel, 26 mm diameter, 2.2 mm thickness, fitted with standard 2.35 mm HP shank for dental lab straight handpieces.
2. Unique spiraling segmented design creates chip clearance gaps; delivers excellent conformability to curved surfaces, occlusal anatomy and crown margins.
3. High‑efficiency material removal, reduces chipping risk compared to rigid diamond burs. Autoclavable up to 135°C for repeated lab use.
4. Open spiral structure facilitates heat dissipation, lowers heat buildup during heavy coarse grinding; efficiently removes CAD‑CAM milling marks and deep surface irregularities.
5. Balanced wheel structure minimizes operating vibration; uniform diamond particle distribution ensures stable cutting performance and extended service life.
6. Segmented spiral profile prevents material clogging, maintains consistent abrasive performance for crown & bridge bulk finishing work.
**Application Range**
✅ Recommended for:
- Monolithic zirconia crowns & bridges
- Lithium disilicate (e‑max), feldspathic porcelain and all‑ceramic restorations
- First‑step coarse grinding, removal of milling marks, sintering protrusions and deep scratches
- Precious & non‑precious metal copings and frameworks
❌ Not for:
- Direct intra‑oral clinical use on natural teeth
- Composite resin materials
**Operating Remarks**
‑ Do not exceed maximum 20,000 RPM.
‑ Use light pressure to avoid overheating and ceramic micro‑cracks.
‑ Follow full grit‑sequence workflow: Super‑Coarse → Coarse → Medium → Super‑Fine → Ultra‑Fine, do not skip steps.
‑ For dental laboratory use only.
Note: Spiraling (spiral segmented) structure improves heat dissipation and chip evacuation compared to solid‑body rubber diamond wheels. Max speed remains consistent at 20000 RPM for lab safety standard.
