Technical Specifications
| Parameter | Technical Specification |
| Brand & Origin | NIQUA SUPER Q® (Swiss Made) |
| Product Model / Range | Series 79 (Egg-Shaped Burs) |
| Product Code | 03-247-060 through 03-247-080 |
| Bur Head Shape |
Egg-Shaped / Ovoid |
| Material Construction | Hardened Tool Steel |
| Shank Diameter | Standard 2.35 mm (3/32”) |
| Compatible Metals | Gold, Silver, Copper, Brass, Soft Precious Metal Alloys |
| Primary Applications | Curved Surface Finishing, Stone Seat Preparation, Gallery Hollowing, Complex Contours |
| Rotary Equipment Compatibility | Jewelry Micromotors, Flex Shaft Systems, Rotary Handpieces |
Model & Size Dimension Matrix
| Bur Diameter (Ø mm) | Product Code |
| Ø 6.00 mm | 03 247 060 |
| Ø 7.00 mm | 03 247 070 |
| Ø 8.00 mm | 03 247 080 |
Achieve seamless curved transitions, uniform hollow contouring, and vibration-free rotary metalworking with authentic NIQUA SUPER Q® Egg-Shaped Burs Series “79”. Manufactured to strict Swiss Made standards from high-grade hardened tool steel, this large-diameter rotary bur series is engineered specifically for professional goldsmiths, diamond setters, and fine jewelry manufacturing workshops.
Featuring an ovoid (egg-shaped) head profile with longitudinally ground cutting flutes that gently taper toward a rounded apex, the Series “79” provides controlled material removal across concave recesses, sculpted ring galleries, and intricate mounting seats. Its organic curved contour distributes cutting pressure smoothly across soft precious metals like yellow gold and silver, as well as copper, brass, and related soft alloys without tool chatter or metal dragging. Fitted with a standardized 2.35 mm (3/32”) shank, it integrates seamlessly into standard jewelry micromotors, flexible shaft handpieces, and quick-change bench systems across diameters of 6.00 mm, 7.00 mm, and 8.00 mm.
Key Features & Benefits
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Distinctive Egg-Shaped Cutting Geometry: Combines a broad curved belly with a tapered rounded nose, ideal for shaping organic recesses and clearing complex inner contours.
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Hardened High-Grade Tool Steel: Robust alloy composition provides high wear resistance and extended edge sharpness throughout demanding daily workshop use.
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Smooth, Reduced-Vibration Operation: True-running concentricity minimizes handpiece chatter, protecting delicate gemstone settings and thin-walled mountings from distortion.
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Clean, Controlled Material Removal: Finely pitched teeth slice through soft precious metals, preventing metal dragging and reducing subsequent polishing stages.
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Swiss Made Precision Quality: Built under strict Swiss manufacturing standards to ensure consistent dimensional accuracy across large bur head sizes.
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Standard 2.35 mm (3/32”) Shank: Precision ground to ensure universal fitment across standard bench micromotors, rotary handpieces, and flexible shaft systems.
Primary Application Sectors
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Sculptural Jewelry Fabrication, Gallery Hollowing & Cavity Shaping
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Precision Stone Setting Preparation & Large Bezel Contour Adjustments
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Smoothing Solder Seams and Metal Transitions on Rings, Bangles & Castings
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Controlled Low-Speed Finishing on Gold, Silver, Brass, and Copper Alloys
Commercial Procurement & B2B Wholesale Supply
Whether equipping commercial jewelry manufacturing departments, master goldsmith studios, or expanding your retail bench tooling inventory, we supply authentic NIQUA SUPER Q® 79 egg-shaped burs with tiered volume wholesale pricing, consolidated export packaging, and reliable inventory fulfillment across Series 79. Click Get a Quote to connect with our B2B commercial sales desk for customized wholesale quotes and supply terms.
