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The Busch® Inverted Cone Single-Cut Burs, ISO #029 are expertly engineered to meet the exacting standards of professional jewelers, engravers, and metalworkers. These high-performance burs are designed with an inverted cone shape, ideal for precision work such as undercutting, seat preparation, and detailed shaping in tight or angled areas. Whether you're creating complex settings or refining intricate components, these burs provide exceptional control and cutting accuracy. Crafted in Germany from premium tungsten vanadium steel, each bur is precision-machined to deliver a consistently smooth, even cut. Known for their durability, sharpness, and wear resistance, Busch® Burs are a trusted choice among artisans seeking reliable results and professional-grade quality.
With a standard 3/32" (2.38mm) shank and a total length of 1-3/4" (44.5mm), these burs are compatible with most rotary tools, including flex shafts, micromotors, and Dremel-style handpieces. The ISO #029 head size is ideal for fine detailing work, offering versatility across a range of jewelry-making and metalworking tasks.
Brand: Busch®
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Material: Tungsten Vanadium Steel
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Shape: Inverted Cone
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Cut Type: Single-Cut
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ISO Standard: #029
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Shank Size: 3/32" (2.38mm)
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Head Diameter: 2.90mm
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Head Length: 0.1141" (2.90mm)
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Total Length: 1-3/4" (44.5mm)
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Country of Origin: Germany
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Quantity: 1/2 Dozen (6 burs)
About this Item
The Busch® Inverted Cone Single-Cut Burs – ISO #029 are crafted from premium tungsten vanadium steel, offering exceptional durability, heat resistance, and sharp cutting performance. Each bur is precision-machined with evenly spaced, single-cut flutes to ensure smooth, clean cuts and refined finishes across a range of materials. Ideal for professional jewelers, setters, and metalworkers, these burs are recognized for their consistent quality and performance.
Designed for low to moderate speeds, they provide optimal results with reduced wear, making them perfect for delicate, detail-oriented applications.
How to Use
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Installation: Insert the bur into a compatible rotary tool such as a flex shaft, micromotor, or Dremel-style handpiece (3/32" collet or chuck).
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Operation: Use light, consistent pressure to maintain control and avoid overheating.
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Lubrication: Apply a cutting lubricant like Busch® Lube-Stik to minimize friction, extend tool life, and ensure cleaner cuts.
Safety Information
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Always wear protective eyewear when operating rotary tools.
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Keep hands, hair, and loose clothing away from moving parts.
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After each use, clean the bur with a soft cloth and mild soap to remove debris and maintain sharpness.
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Store in a dry, secure location to prevent damage or contamination.
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Features
High-Quality Tungsten Vanadium Steel
Crafted for long-term durability and high-precision cutting. Offers excellent resistance to wear, heat, and breakage—perfect for demanding jewelry and metalworking applications.
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Inverted Cone Design
Ideal for creating flat-bottomed undercuts, shaping tapered slots, refining stone seats, and cleaning up bezel and prong settings with enhanced control and accuracy.
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Precision Machined Teeth
Single-cut, evenly spaced flutes ensure a smooth, chatter-free cutting experience. Provides clean, accurate results on metals, wax, plastics, and other soft-to-medium materials.
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ISO #029 Head Size (2.90mm Diameter)
Built to strict international standards for consistent performance and sizing, making it perfect for detailed jewelry work, stone setting, and model fabrication.
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Standard Shank Size (3/32” / 2.38mm)
Universally compatible with rotary tools such as flex shafts, micromotors, and Dremel-type handpieces—commonly used at the jewelry bench or in precision workshops.
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Total Length: 1-3/4" (44.5mm)
Offers a balanced reach for both close-up detail work and slightly deeper access, while maintaining tool stability and user comfort.
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Pack of 6 Burs
Convenient multipack supports efficient workflow, allows for quick tool swaps during production, and helps reduce downtime due to wear.
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Multi-Material Use
Suitable for working on gold, silver, platinum, brass, copper, wax, resin, and select plastics—ideal for both fabrication and repair work.
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German Engineering & Craftsmanship
Manufactured in Germany under rigorous quality controls, ensuring top-tier performance, consistency, and reliability.
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Ideal for Professionals & Artisans
Whether you're a jeweler, setter, metalsmith, engraver, or model maker, these burs deliver precise results trusted by professionals worldwide.
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