Niqua® HH(f) Tool Steel Burs Lens

Smooth curved contours, blend transitional surfaces, and model soft precious metals with consistent rotary control and low vibration. Manufactured to Swiss-Made standards for NIQUA, the NIQUA® SUPER Q® HH(f) Lens Bur (Linsenfräser) is an ultra-fine rotary finishing and shaping cutter designed for goldsmiths, diamond setters, and precision jewelry artisans.

Featuring a low-profile, lens-shaped (lenticular) cutting head with a gentle convex curvature and a fine-cut (f) fluting pattern, this bur levels and blends curved areas without digging harsh grooves or leaving faceted edges. The convex top dome allows artisans to work across domed shanks, rounded bezels, and hollow-form depressions with broad surface contact. Machined from premium hardened tool steel, each bur delivers clean chip evacuation and dependable wear resistance in ductile, gummy alloys including yellow gold, sterling silver, copper, brass, and related non-ferrous metals. Fitted with a standard 2.35 mm (3/32") shank, these burs mount directly into jeweler flexible shaft handpieces, quick-change chucks, and precision brushless micromotors. Available in a calibrated diameter progression from 0.90 mm to 3.50 mm (Art.-Nr. 03 219 009 to 03 219 035), each size is packaged in a bench storage box containing 6 pieces.

Why Choose NIQUA® SUPER Q® HH(f) Lens Burs

Specialized Lenticular (Lens) Profile: The convex disc curvature blends curved contours, smooths rounded transitions, and refines concave recesses without gouging adjacent metal.
Fine Cut (f) Surface Finishing: Tightly spaced, precision-ground radial teeth deliver controlled stock removal and leave a uniform surface finish that cuts polishing time.
Broad Contact Geometry: The shallow curved head spreads cutting pressure evenly across contoured workpieces, preventing tool chatter and uneven flat spots.
Low-Vibration Concentric Operation: Precision-ground Swiss tool steel core minimizes radial runout, ensuring steady handpiece tracking under high bench magnification.
Clog-Resistant Chip Clearance: Optimized flute gullets clear ductile metal shavings quickly, preventing tool loading and heat buildup in soft gold and silver.
Hardened Swiss-Quality Tool Steel: Provides edge sharpness and wear resistance during long production finishing sessions.
Universal 2.35 mm (3/32") Shank: Compatible with standard jeweler flex shafts, micromotors, and quick-change bench systems without adapters.

Size Selection Guide

Diameter (mm)	Article Number (Art.-Nr.)
0.90 mm	03 219 009
1.00 mm	03 219 010
1.10 mm	03 219 011
1.20 mm	03 219 012
1.30 mm	03 219 013
1.40 mm	03 219 014
1.50 mm	03 219 015
1.60 mm	03 219 016
1.70 mm	03 219 017
1.80 mm	03 219 018
1.90 mm	03 219 019
2.00 mm	03 219 020
2.10 mm	03 219 021
2.20 mm	03 219 022
2.30 mm	03 219 023
2.40 mm	03 219 024
2.50 mm	03 219 025
2.70 mm	03 219 027
2.90 mm	03 219 029
3.00 mm	03 219 030
3.10 mm	03 219 031
3.30 mm	03 219 033
3.50 mm	03 219 035

Fine Goldsmiths & Silversmiths: Smoothing inside ring curves, blending solder transitions on hollow-ware, and modeling domed jewelry elements.

Gemstone & Diamond Setters: Blending prong tips after stone setting, refining rounded bezel rims, and smoothing transitional gallery borders.

Sculptural & Organic Jewelry Makers: Contouring flowing wax or cast metal models, detailing botanical petals, and smoothing sculptural reliefs.

Jewelry Repair Workshops: Smoothing repaired ring shanks, re-contouring worn prongs, and leveling reworked solder seams without flattening round wire profiles.

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.