Niqua® K(f) Tool Steel Burs Wheel

Mill flat bearing seats, square internal steps, and refine precise edges with smooth, controlled tracking and low vibration. Manufactured to Swiss-Made precision standards for NIQUA, the NIQUA® SUPER Q® K(f) Wheel Bur (Radfräser) is a specialized rotary cutter engineered for fine jewelry manufacturing, stone setting, engraving, and precision metalworking.

Featuring a low-profile wheel head with a flat top and bottom face joined by fine-cut (f) radial cutting teeth around the circumference, the Series K(f) bur allows artisans to level recessed areas, profile channel settings, and cut crisp right angles without disturbing adjacent metal surfaces. Machined from premium hardened tool steel, each bur retains sharp cutting edges and delivers smooth chip clearance in soft, ductile alloys including yellow gold, sterling silver, copper, brass, and related non-ferrous metals. Built on a standard 2.35 mm (3/32") shank, these wheel burs fit directly into jeweler flexible shaft handpieces, precision micromotors, and quick-change bench systems. Offered in calibrated diameters from 1.00 mm to 3.00 mm (Art.-Nr. 03 220 010 to 03 220 030), each size is packaged in a bench storage box containing 6 pieces.

Why Choose NIQUA® SUPER Q® K(f) Wheel Burs

• Distinctive Wheel-Shaped Profile: Flat faces combined with sharp perimeter cutting teeth allow precise machining of flat surfaces, edges, and bearing seats.

• Fine Cut (f) Tooth Architecture: Closer, finer-fluted teeth deliver controlled stock removal and smooth surface finishes, preventing aggressive grabbing or chatter in soft precious metals.

• Controlled Depth Guidance: The flat end face acts as a natural depth stop against horizontal planes, eliminating tool wander during recess flattening.

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

• Clog-Resistant Chip Clearance: Optimized tooth gullets clear swarf rapidly, preventing metal galling and tooth buildup in soft gold and silver alloys.

• Hardened Swiss-Quality Tool Steel: Provides long-lasting wear resistance and consistent cutting efficiency across daily workshop production.

• Universal 2.35 mm (3/32") Shank: Provides seamless compatibility across all standard flexible shaft systems, quick-change handpieces, and laboratory micromotors.

Size Selection Guide