Niqua® 171C Wax Burs

Carve spherical cavities, hollow organic forms, and mill modeling wax cleanly without chip clogging, tearing, or friction melting. Engineered specifically for professional jewelry model makers, goldsmiths, and wax sculptors, the NIQUA® SUPER Q® Series "171C" Round Wax Bur (Kugelfräser für Wachs) delivers smooth, low-vibration carving in lost-wax master patterns.

Standard metal burs feature dense, fine fluting that immediately packs with softened wax, causing friction burnish and distorted surfaces. In contrast, the Series 171C features an open-spaced, wide-gullet spherical blade geometry with wide helical flutes. This specialized architecture cleanly shears wax into discrete ribbons and expels swarf outward, maintaining a clean cutting face without material adhesion. Forged from premium hardened tool steel, each bur holds a sharp cutting edge over long production cycles across hard injection waxes, purple and green carving wax blocks, ring tubes, and milling waxes. Built on an industry-standard 2.35 mm (3/32") shank, these wax burs fit directly into jeweler flexible shaft handpieces, precision bench micromotors, and quick-change bench systems. Available in calibrated diameters of 1.80 mm, 2.30 mm, 3.10 mm, and 5.00 mm (Item Numbers: 03 254 018 to 03 254 050), each size is packaged in a bench storage box containing 6 pieces.

Why Choose NIQUA® SUPER Q® 171C Round Wax Burs

• Specialized Wax Blade Architecture: Wide-fluted spherical geometry prevents material adhesion, gumming, and localized melting during high-speed carving.

• Clean Shearing Action: Sharp cutting edges cleanly slice modeling wax, preventing the micro-tearing and chipping often caused by multi-toothed metal burs. 

• True Spherical Hollowing: Ground to tight tolerances to shape clean hemispherical hollows, under-bezel recesses, and smooth internal curves. 

• Low-Vibration Concentric Operation: Precision-ground tool steel core minimizes radial runout, ensuring steady handpiece tracking under high bench magnification.

• Hardened Tool Steel Construction: Provides dependable edge retention, wear resistance, and long service life across repetitive wax modeling workflows. 

• Universal 2.35 mm (3/32") Shank: Provides seamless compatibility across standard flexible shaft systems, quick-change handpieces, and laboratory micromotors without collet adapters.