Cut delicate slots, slice narrow setting grooves, and mill flat decorative surfaces with positive lateral clearance and reduced friction heat. Manufactured in Germany by NIQUA to European toolmaking standards, the NIQUA® SUPER Q® Crown Plate Saw Bur "45" (Crown Cutter / Plate Saw) is a dedicated rotary cutting instrument engineered for fine goldsmithing, stone setting, and precision cavity machining.
Featuring a circular, wafer-thin plate head ringed with sharp perimeter saw teeth and face serrations, the Series 45 bur functions as an ultra-fine rotary circular saw blade and surface cutter in one. The crown profile delivers smooth chip evacuation while minimizing contact friction, preventing heat buildup and galling in soft, ductile alloys including yellow gold, sterling silver, copper, and brass. Mounted on an industry-standard 2.35 mm (3/32") shank, these burs drop directly into jeweler flexible shaft handpieces, quick-change chucks, and brushless micromotors. Available in diameters from 2.30 mm to 4.00 mm (Item Numbers: 03 211 023 to 03 211 040), each size is packaged in a bench storage box of 6 pieces.
Why Choose NIQUA® SUPER Q® Crown Plate Saw Burs "45"
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Distinctive Crown Plate Saw Geometry: Ultra-slim disc profile with circumferential saw teeth acts as a micro slitting blade, accessing tight seams and undercut zones with clear bench visibility.
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Efficient Chip Evacuation: Engineered saw gullets fling swarf outward, preventing clogging and workpiece drag during prolonged scoring in soft precious metals.
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Reduced Friction & Heat Generation: The minimal surface contact area of the thin plate perimeter reduces thermal transfer, preventing work hardening of delicate jewelry alloys.
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Vibration-Free Concentric Operation: Precision-ground German tool steel shanks reduce radial runout, ensuring smooth running and clean cuts without chatter under microscope inspection.
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Hardened German Tool Steel: Delivers long-lasting edge sharpness and wear resistance across daily workshop production.
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Universal 2.35 mm (3/32") Shank: Compatible with standard flex shafts, micromotors, and jewelers' rotary handpieces without adapters.
Size Selection
| Diameter (mm) | Item Number |
| 2.30 mm | 03 211 023 |
| 2.90 mm | 03 211 029 |
| 3.50 mm | 03 211 035 |
| 4.00 mm | 03 211 040 |
Free Global Shipping
We process orders within 1-3 business days. Estimated standard international delivery is 6-12 business days.
14-Day Returns
We have a 14-day return policy. Items must be unused, with all original accessories, and in original packaging.
For full details, please refer to our Shipping and Refund policies at the bottom of the page.
