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The Busch® Round Burs – Fig. 1 – 3.30 mm (ISO #033) are expertly engineered to deliver exceptional precision, strength, and performance across a range of detailed jewelry and metalworking tasks. Crafted in Germany from premium tungsten vanadium steel, these burs offer long-lasting durability, excellent wear resistance, and consistently clean cuts.
Each bur features precision-machined teeth that deliver smooth, vibration-free cutting. The rounded Fig. 1 shape provides excellent maneuverability, making it ideal for accessing tight spaces and working on complex or curved surfaces. Whether you're a professional jeweler or a dedicated hobbyist, these burs are excellent for engraving, drilling, deburring, stone setting, and texturing.
With a standard 3/32" shank and approximate length of 1-3/4", these burs are compatible with most rotary tools, including flex shafts, Dremels, and micromotors.
To maintain peak performance and extend tool life, it is recommended to use a cutting lubricant such as Busch® Lube-Stik.
Each pack includes 6 high-precision burs, offering excellent value and reliable quality trusted by jewelers worldwide.
- Brand: Busch®
- Shape: Round, Fig. 1
- Diameter: 3.30 mm
- Material: Premium Tungsten Vanadium Steel
- Shank Size: 3/32" (2.35 mm) – Compatible with standard rotary tools including Dremel®, Foredom®, and flex shafts
- Length: Approx. 1-3/4" (44 mm)
- Quantity: Pack of 6 identical burs
- Maximum Safe Speed: Refer to packaging or manufacturer specifications for recommended RPM based on material and tool
- Lubrication: Use of cutting lubricant such as Busch® Lube-Stik is recommended to reduce friction, optimize cutting efficiency, and extend bur life
- ISO Classification: #033
- Applications: Perfect for engraving, stone setting, deburring, drilling, shaping, and texturing in jewelry making, watchmaking, and other precision metalworking tasks
About this Item:
Busch® burs are
expertly crafted from premium tungsten vanadium steel, engineered to maintain
smooth, even cuts and deliver a flawless finish. Their fine teeth and precise
cutting edges make them ideal for detailed jewelry work and repairs, offering
reliable performance even at low speeds.
How to Use:
Insert the bur securely into your rotary tool’s collet or chuck.
Use light, controlled pressure for best results—avoid forcing the bur.
Apply a suitable lubricant (like Busch® Lube-Stik) to extend tool life and achieve smoother, more efficient cutting.
Operate at the recommended speed for your material and task.
Safety Information:
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Features
Premium Tungsten Vanadium Steel: Crafted from high-grade tungsten vanadium steel for exceptional durability, edge retention, and resistance to wear—even under heavy use.
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Precision-Cut Teeth: Engineered with finely machined cutting edges for smooth, clean, and accurate cuts with minimal vibration—ideal for delicate, high-precision work.
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Versatile Round Shape (Fig. 1): The rounded head offers enhanced maneuverability, allowing for efficient access to tight, curved, or hard-to-reach areas.
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Ideal for Multiple Applications: Perfect for engraving, deburring, stone setting, drilling, shaping, and texturing in jewelry design, watchmaking, and metalsmithing.
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Standard Rotary Tool Compatibility: Features a 3/32" (2.35 mm) shank that fits most rotary tools, including Dremel, Foredom, and flex shaft systems.
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Optimal Length: Approximately 1-3/4" (44 mm) long—provides control and precision while maintaining tool stability.
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Lubricant Recommended: Use with a cutting lubricant such as Busch® Lube-Stik to reduce friction, enhance performance, and extend tool life.
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High-Value Pack of 6: Includes six identical burs—ideal for professional jewelers, workshops, or users who require backups during continuous work.
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Compatible with Various Materials: Works efficiently on precious metals (gold, silver, platinum), non-ferrous metals (brass, copper), plastics, and wax.
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Low Noise & Vibration: Designed for stable, quiet performance during detailed or prolonged use.
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Made in Germany: Precision-manufactured under strict quality control standards—trusted worldwide for reliability, craftsmanship, and consistency.
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Easy Maintenance: Simple to clean with mild soap and a soft brush to maintain sharpness and prevent material buildup.
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