Technical Specifications
| Parameter | Technical Specification |
| Brand & Origin | NIQUA SUPER Q® (Made in Germany) |
| Set Designation | Series 58MD (10-Piece Micro Drill Assortment) |
| Product Code | 03-239-000 |
| Tool Type | Precision Twist Micro Drills |
| Material Construction | Premium Tungsten Carbide |
| Shank Diameter | Standard 2.35 mm (3/32”) |
| Sizes Included | ISO 005 through ISO 014 |
| Compatible Materials | Gold, Silver, Platinum Alloys, Copper, Brass, Steel, Titanium, Glass, Ceramics |
| Primary Applications | Pre-Drilling Gem Seats, Pilot Holes for Saw Blades, Micro-Piercing, Hard Alloy Drilling |
| Rotary Equipment Compatibility | Jewelry Micromotors, Flex Shaft Systems, Precision Drill Presses |
Execute clean, burr-free holes, rapid chip evacuation, and vibration-free rotary micro-drilling with the authentic NIQUA SUPER Q® Tungsten Carbide Drill Bit Set “58MD”. Engineered specifically for master jewelers, diamond setters, watchmakers, and precision metalworking workshops, this comprehensive 10-piece set covers the most critical micro-drilling diameters required for fine goldsmithing and bench manufacturing.
Manufactured from solid micro-grain tungsten carbide, the Series “58MD” delivers outstanding wear resistance, cutting edge rigidity, and thermal endurance far exceeding conventional tool steel. The precision-ground spiral flutes bite immediately into base materials without wandering, drilling through soft precious metals—such as yellow gold, silver, copper, and brass—as well as demanding hard materials including stainless steel, titanium, tungsten carbide, glass, and technical ceramics. Every drill bit is precision-fitted with a standardized 2.35 mm (3/32”) shank, guaranteeing true-running concentricity across jewelry micromotors, flexible shaft handpieces, and quick-change bench systems.
Key Features & Benefits
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Solid Tungsten Carbide Construction: High-density carbide alloy offers structural rigidity, extreme wear resistance, and long tool life when drilling abrasive and hard metals.
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Versatile 10-Piece Core Assortment: Includes the ten most essential jewelry micro-drilling sizes from 0.50 mm (ISO 005) to 1.40 mm (ISO 014).
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Clean, Burr-Free Drilling: Sharp cutting edges and optimized spiral helix geometry expel swarf continuously, creating round, chatter-free hole geometries.
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Multi-Material Compatibility: Drills gold, silver, copper, and brass, as well as tough alloys, hardened steel, titanium, glass, and ceramics without premature tip wear.
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Protective Index Cassette: Supplied in a dedicated translucent index case with labeled diameter compartments for benchtop organization and edge protection.
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Standard 2.35 mm (3/32”) Shank: Precision-ground shank ensures concentric, slip-free clamping across standard micromotors, rotary handpieces, and flex shafts.
Primary Application Sectors
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Pre-Drilling Pilot Holes for Diamond Pavé, Channel, and Prong Settings
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Starter Holes for Piercing Work with Jeweler’s Piercing Saw Blades
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Custom Jewelry Fabrication, Casting Spruing & Assembly Repairs
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Micro-Machining and Drilling in Hard Metals, Titanium, Glass, and Ceramics
Commercial Procurement & B2B Wholesale Supply
Whether outfitting high-volume jewelry manufacturing facilities, diamond setting ateliers, or expanding your retail bench tooling inventory, we supply authentic NIQUA SUPER Q® 58MD tungsten carbide drill sets with tiered volume wholesale pricing, consolidated export packaging, and reliable batch replenishment. Click Get a Quote to connect with our B2B commercial sales desk for customized wholesale quotes and supply schedules.
