Technical Specifications
| Parameter | Technical Specification |
| Brand & Origin |
NIQUA SUPER Q® (Made in Germany) |
| Product Model / Range | Series 2C2 (Conical Cup Burs with Chip Evacuation) |
| Product Code | 03-238-008 through 03-238-023 |
| Bur Head Shape | Conical Cup Bur / Cup Bur Cone |
| Design Feature |
Integrated Chip Evacuation Slot / Conical Taper / Super Thin Walls |
| Material Construction | Hardened Tool Steel |
| Shank Diameter | Standard 2.35 mm (3/32”) |
| Compatible Metals | Gold, Silver, Copper, Brass, Soft Alloys |
| Primary Applications | Prong Rounding, Setting Refinement, Wire End Finishing, Cavity Hollowing |
| Rotary Equipment Compatibility | Jewelry Micromotors, Flex Shaft Systems, Rotary Handpieces |
Model & Size Dimension Matrix
| Bur Diameter (Ø mm) | Product Code |
| Ø 0.80 mm | 03 238 008 |
| Ø 0.90 mm | 03 238 009 |
| Ø 1.00 mm | 03 238 010 |
| Ø 1.10 mm | 03 238 011 |
| Ø 1.20 mm | 03 238 012 |
| Ø 1.30 mm | 03 238 013 |
| Ø 1.40 mm | 03 238 014 |
| Ø 1.50 mm | 03 238 015 |
| Ø 1.60 mm | 03 238 016 |
| Ø 1.70 mm | 03 238 017 |
| Ø 1.80 mm | 03 238 018 |
| Ø 1.90 mm | 03 238 019 |
| Ø 2.00 mm | 03 238 020 |
| Ø 2.10 mm | 03 238 021 |
| Ø 2.20 mm | 03 238 022 |
| Ø 2.30 mm | 03 238 023 |
Achieve smooth rounded prong tips, clean wire finishing, and clog-free rotary cutting with authentic NIQUA SUPER Q® Conical Cup Burs Series “2C2”. Representing an advanced generation of precision rotary burs developed specifically for professional goldsmiths, diamond setters, and fine jewelry manufacturing workshops, the Series “2C2” combines a tapered conical outer profile with an integrated chip evacuation slot.
Featuring extra-deep, super-thin cup walls and cross-cutting chip channels, the Series “2C2” continuously ejects metal swarf away from the working zone during operation. This prevents tool clogging, frictional heat buildup, and surface galling when machining soft, ductile precious metals such as yellow gold, silver, copper, and brass. The tapered conical head profile maximizes working clearance and direct sightlines between closely set stones in micro-pavé, cluster, and channel mountings. Manufactured from premium hardened tool steel, it delivers consistent cutting efficiency, vibration-free rotary stability, and extended service life across elevated bench speeds. 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 from 0.80 mm (03 238 008) to 2.30 mm (03 238 023).
Key Features & Benefits
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Integrated Chip Evacuation Slot: Dual cross-slots allow chips to evacuate continuously, preventing soft gold and silver shavings from packing inside the cup.
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Tapered Conical Head Profile: Provides extra clearance in restricted settings, preventing the bur exterior from contacting adjacent gemstone facets.
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Super-Thin & Extra-Deep Cup Walls: Encloses prong tips completely for uniform hemispherical rounding while maintaining maximum visual control.
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Hardened High-Quality Tool Steel: Precision alloy treatment delivers high wear resistance and extended edge sharpness throughout demanding daily bench use.
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Smooth, Low-Vibration Operation: Concentric rotary tracking prevents tool hop, ensuring prong tips and wire ends are rounded into symmetrical domes without bending delicate claws.
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Standard 2.35 mm (3/32”) Shank: Precision ground to ensure universal compatibility with standard bench micromotors, rotary handpieces, and flexible shaft systems.
Primary Application Sectors
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Dressing and Rounding Prongs in High-Density Pavé, Prong & Cluster Settings
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Finishing Rivet Heads, Hinge Pins & Mechanical Wire Terminations in Goldsmithing
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Precision Hollowing and Setting Refinement on Precious Metal Mounts
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Industrial Bench Production on Gold, Silver, Brass, and Copper Alloys
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® 2C2 conical cup burs with tiered volume wholesale pricing, consolidated export packaging, and reliable inventory fulfillment across Series 2C2. Click Get a Quote to connect with our B2B commercial sales desk for customized wholesale quotes and supply terms.
