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The Busch® Round Burs - Fig. 1 - 0.50 mm (ISO #005) deliver unmatched precision, strength, and cutting performance for fine jewelry work. Expertly crafted in Germany from premium tungsten vanadium steel, these burs are built for durability, wear resistance, and reliable long-term use—even under demanding workshop conditions.
The finely ground round head with precision-cut teeth ensures smooth, clean, and accurate cuts, making these burs ideal for delicate applications such as stone setting, engraving, drilling, and metal shaping. Their compact 0.50 mm diameter allows access to tight or detailed areas, making them an essential tool for both professional jewelers and hobbyists.
Measuring approximately 1-3/4" in length with a standard 3/32" (2.35 mm) shank, these burs fit most rotary handpieces, including Dremel®, Foredom®, and flex shafts. They are highly compatible with precious and non-precious metals including gold, silver, platinum, and also work well on wax and soft materials.
For best results and extended tool life, use a lubricant such as Busch Lube-Stik during operation to minimize friction and maintain sharpness. Each pack includes 6 high-precision burs, offering excellent value and professional-grade quality trusted by jewelers around the world.
Brand: Busch®
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Shape: Round, Fig. 1
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Diameter: 0.50 mm
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Material: Premium Tungsten Vanadium Steel
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Shank Size: 3/32" (2.35 mm) — Fits standard rotary tools (Dremel®, Foredom®, etc.)
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Length: Approx. 1-3/4" (44.5 mm)
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Quantity: Pack of 6 burs
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Maximum Safe Speed: Refer to packaging for specific speed recommendations based on size
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Lubrication: Use recommended lubricants such as Busch Lube-Stik for optimal results
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ISO Classification: #005
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Applications: Engraving, drilling, stone setting, deburring, and texturing metals or wax
About This Item
Busch® Round Burs Fig. 1 - 0.50 mm (ISO #005) are precision-engineered from premium tungsten vanadium steel to provide maximum durability, cutting strength, and wear resistance. With a finely ground round shape and sharp, evenly spaced teeth, these burs are ideal for delicate tasks like stone setting, micro-engraving, and shaping jewelry materials.
Their ultra-fine 0.50 mm diameter is perfect for precision detailing on soft and hard materials alike—such as gold, silver, platinum, palladium, wax, and non-ferrous metals. Designed for professionals and hobbyists alike, these burs deliver clean, controlled cuts even at low speeds.
Each bur is manufactured in Germany to the highest standards, ensuring long tool life and flawless performance for intricate jewelry work.
How to Use
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Insert the bur into a compatible rotary tool with a 3/32" collet or chuck.
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Set to the appropriate speed—check packaging for maximum RPM.
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Apply light, steady pressure while working.
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Use a lubricant like Busch Lube-Stik to reduce heat, improve cutting action, and extend the tool's lifespan.
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Clean after use with a soft brush or cloth and mild soap.
Safety Information
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Always wear safety glasses or protective eyewear.
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Use in a well-ventilated workspace.
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Keep burs clean and stored in a dry place to prevent corrosion.
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Avoid excessive pressure which could damage both the tool and the material.
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Features
Premium Tungsten Vanadium Steel: Offers outstanding durability, strength, and resistance to corrosion for long-term use in professional settings.
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Precision-Cut Teeth: Delivers smooth, chatter-free cutting and superior surface finishes—ideal for fine detail work.
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Ultra-Fine Diameter (0.40 mm): Designed for micro-precision tasks such as intricate engraving, pavé setting, and delicate drilling in tight or hard-to-reach areas.
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Versatile Round Shape: Perfect for shaping, smoothing, and carving, as well as for tasks like stone setting, texturing, and wax modeling.
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Standard Length & Shank: Approx. 1-3/4" overall length and 3/32" (2.35 mm) shank diameter—compatible with most rotary tools, flex shafts, and micromotors.
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Efficient Cutting Performance: Suitable for both soft and hard materials, including gold, silver, platinum, palladium, wax, plastic, and non-ferrous metals.
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Lubrication Recommended: Use with Busch Lube-Stik or other jewelry cutting lubricants to minimize heat and extend tool life.
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ISO Certified (#004): Manufactured to international standards for precision and quality assurance.
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Pack of 6 Burs: Provides excellent value and convenience for jewelers, metalsmiths, and engravers.
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Made in Germany: Engineered with strict quality control for professional-grade reliability, accuracy, and tool longevity.
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Ideal for Professional & Hobby Use: Trusted by master jewelers and suitable for detailed bench work, repair, and stone setting.
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