Niqua® 25 Tool Steel Burs Wheel

Level flat-bottom seats, square sharp internal edges, and mill true horizontal planes without disturbing surrounding metal. Manufactured in Germany by NIQUA to European toolmaking standards, the NIQUA® SUPER Q® Wheel Bur "25" is a specialized rotary cutter engineered for stone setting, gallery leveling, and precision jewelry machining.

Featuring a disc-like cylindrical wheel head with flat top and bottom cutting faces joined by a sharp fluted perimeter, the Series 25 bur allows jewelers to flatten recessed cavities, true bearing shoulders, and open prong channels with positive mechanical guidance. Forged from premium hardened tool steel, each wheel bur delivers smooth, low-vibration rotation and efficient swarf evacuation in soft, ductile alloys such as yellow gold, sterling silver, copper, and brass. Fitted with 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 a calibrated diameter range from 0.60 mm to 2.90 mm (Item Codes: 03 202 006 to 03 202 029), each size is packaged in a protective bench storage box of 6 pieces.

Why Choose NIQUA® SUPER Q® Wheel Burs "25"

• Precise Wheel Profile: The cylindrical wheel geometry allows the artisan to mill true horizontal bearing shoulders and level stone seats without rounding inner corners.

• Sharp Radial Cutting Perimeter: Precision-fluted circumferential edges deliver controlled horizontal stock removal, truing channel rails and side prongs cleanly.

• Flat Face Guidance: The flat top surface provides positive registration against horizontal planes, eliminating tool wander during recess flattening.

• Clog-Resistant Chip Clearance: Optimized tooth gullets quickly evacuate metal shavings away from the cut path, preventing clogging and galling in soft gold and silver.

• Low-Vibration Concentric Operation: Precision-ground shanks run true without radial wobble, protecting micro-pave claws and delicate stone seats under microscope inspection.

• Hardened German Tool Steel: Delivers durable edge retention and smooth cutting efficiency across continuous jewelry workshop use.

Size Selection & Recommended Speed (RPM) Guide