Niqua® 24 Tool Steel Burs Inverted Cone

Brand: Niqua®

Product Code: 03-201-006 – 03-201-029

Bur Material: Tool Steel

Country: Germany

Shape:  Cone “24”

Material: Hardened tool Steel

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

  • Inverted Conical Cutting Geometry: Tapered fluted head delivers defined inner angles, flat bottoms, and clean undercuts when opening and adjusting gemstone seats.

  • Hardened Tool Steel Construction: Premium German tool steel ensures edge sharpness, high wear resistance, and long tool life during daily bench use.

  • Smooth, Vibration-Free Operation: High concentric accuracy prevents chatter marks and tool runout, protecting delicate prong walls from distortion.

  • Clog-Resistant Chip Flow: Optimized flute spacing evacuates chips freely, preventing clogging when milling softer precious metals like yellow gold and fine silver.

  • 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

  • Stone Seat Undercutting & Bezel Wall Adjustments

  • Milling Flat-Bottom Cavities for Flush & Channel Settings

  • Fine Relief Engraving, Decorative Carving & Die Contouring

  • 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.

About Us

About Us

JYBS(Jinyuanbao) is a 35-year-old company with a full range of jewellery tools, offering professional services and a perfect quality control system.
Only to be a trustworthy tool home for jewellery masters at home and abroad.

The products are exported to 40+ countries and regions with over 30,000 products and the export value reached US$6.7 million in 2021.
Since 1988, Jinyuanbao is a professional jewellery tools and equipment supplier based in Guangzhou, China.

We offer a wide range of jewellery tools and equipment such as diamond testers, punching machines, polishing machines, setting tools, jewellery cutting tools, abrasive tools,
polishing tools, ring setting and stretching machines, faceting machines, engraving machines, casting machines, and measuring instruments.

We have supplied many prestigious American and European customers with products of consistent quality.
Our products are popular with our customers due to their superior quality and affordable prices.

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