Technical Specifications
| Parameter | Technical Specification |
| Brand & Origin |
NIQUA SUPER Q® (Made in Germany) |
| Product Model / Range | Series 24 (Models 24-006 through 24-029) |
| Product Code | 03 201 006 through 03 201 029 |
| Bur Head Shape |
Inverted Cone / Cone |
| Material Construction | Hardened Tool Steel |
| Shank Diameter | Standard 2.35 mm (3/32”) |
| Compatible Metals | Gold, Silver, Copper, Brass, Soft Alloys |
| Primary Applications | Stone Seat Undercutting, Setting Adjustment, Contouring, Fine Engraving |
| Rotary Equipment Compatibility | Micromotors, Flex Shaft Machines, Rotary Handpieces |
Model & Size Dimension Matrix
| Bur Diameter (Ø mm) | Product Model | Product Code |
| Ø 0.60 mm | 24-006 | 03 201 006 |
| Ø 0.70 mm | 24-007 | 03 201 007 |
| Ø 0.80 mm | 24-008 | 03 201 008 |
| Ø 0.90 mm | 24-009 | 03 201 009 |
| Ø 1.10 mm | 24-010 | 03 201 010 |
| Ø 1.20 mm | 24-012 | 03 201 012 |
| Ø 1.40 mm | 24-014 | 03 201 014 |
| Ø 1.60 mm | 24-016 | 03 201 016 |
| Ø 1.80 mm | 24-018 | 03 201 018 |
| Ø 2.10 mm | 24-021 | 03 201 021 |
| Ø 2.30 mm | 24-023 | 03 201 023 |
| Ø 2.50 mm | 24-025 | 03 201 025 |
| Ø 2.70 mm | 24-027 | 03 201 027 |
| Ø 2.90 mm | 24-029 | 03 201 029 |
Achieve precise seat undercuts, clean flat-bottom recesses, and defined internal contours with authentic NIQUA SUPER Q® Inverted Cone Burs Series “24”. Manufactured in Germany by NIQUA with over 125 years of precision toolmaking heritage, this specialized rotary cone bur is engineered specifically for professional goldsmiths, stone setters, and fine jewelry production ateliers.
Featuring an inverted conical head with sharp cross-cut fluting, the Series “24” provides controlled material removal when milling recesses, adjusting bezel seats, and defining sharp corners across gold, silver, copper, and brass. The reverse-tapered profile allows artisans to undercut stone bearing channels without grazing upper prong edges. Fitted with a standard 2.35 mm (3/32”) shank, it integrates seamlessly into standard jewelry micromotors and flex shaft handpieces across diameters from 0.60 mm (24-006) to 2.90 mm (24-029).
Key Features & Benefits
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Inverted Conical Cutting Geometry: Tapered fluted head delivers defined inner angles, flat bottoms, and clean undercuts when opening and adjusting gemstone seats.
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Hardened Tool Steel Construction: Premium German tool steel ensures edge sharpness, high wear resistance, and long tool life during daily bench use.
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Smooth, Vibration-Free Operation: High concentric accuracy prevents chatter marks and tool runout, protecting delicate prong walls from distortion.
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Clog-Resistant Chip Flow: Optimized flute spacing evacuates chips freely, preventing clogging when milling softer precious metals like yellow gold and fine silver.
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Standard 2.35 mm (3/32”) Shank: Precision ground to fit all standard micromotor chucks, flex shaft handpieces, and quick-change systems.
Primary Application Sectors
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Stone Seat Undercutting & Bezel Wall Adjustments
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Milling Flat-Bottom Cavities for Flush & Channel Settings
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Fine Relief Engraving, Decorative Carving & Die Contouring
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Goldsmithing & Model Making in Precious & Non-Ferrous Metals
Commercial Procurement & B2B Wholesale Supply
Whether equipping commercial jewelry setting lines, artisanal studios, or expanding your retail bench tooling inventory, we supply authentic German-made NIQUA SUPER Q® inverted cone burs with tiered volume wholesale discounts, consolidated export packaging, and reliable inventory fulfillment across Series 24. Click Get a Quote to connect with our B2B commercial sales desk for institutional quotes and supply terms.






