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The Busch® Round Burs - Fig. 1 - 4.50 mm (ISO #045) offer exceptional precision, strength, and longevity for all your fine jewelry work and metal crafting needs. Expertly engineered from premium tungsten vanadium steel, these burs deliver reliable performance in intricate tasks such as engraving, stone setting, texturing, deburring, and metal shaping.
Each bur is fitted with precision-ground teeth for smooth and controlled material removal, producing clean, accurate cuts across a variety of metals including gold, silver, platinum, and other non-ferrous metals. The round shape (Fig. 1) allows access to hard-to-reach areas and complex contours, making it indispensable for detailed jewelry work.
With a 3/32" shank and approximate length of 1-3/4", these burs are compatible with all standard rotary tools such as flex shafts, micromotors, and Dremels.
Made in Germany, Busch® burs are trusted worldwide for their unmatched durability, performance, and quality craftsmanship.
Brand: Busch®
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Shape: Round (Fig. 1)
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Diameter: 4.50 mm
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Material: Premium Tungsten Vanadium Steel
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Shank Size: 3/32" (2.35 mm) – fits most rotary tools, including Dremel and Foredom
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Length: Approx. 1-3/4" (45 mm)
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Quantity: Package of 6 burs
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ISO Classification: #045
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Maximum Safe Speed: Refer to product packaging for specific RPM limits
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Lubrication: Use of cutting lubricant (e.g., Busch Lube-Stik) is strongly recommended
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Country of Manufacture: Made in Germany
About this ItemBusch® Round Burs are engineered in Germany from high-grade tungsten vanadium steel for unmatched durability and edge retention. Designed for smooth, vibration-free cutting, these burs excel in delicate tasks where control and detail are essential. The round shape (Fig. 1) is perfect for creating settings, carving details, or working in tight spaces on precious metals like gold, silver, and platinum. How to Use
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Secure the bur into a rotary handpiece (flex shaft, micromotor, or Dremel).
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Run at an appropriate speed for the material (check packaging or tool specs).
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Apply gentle, consistent pressure — avoid forcing the bur.
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Use a lubricant like Busch Lube-Stik to reduce friction, heat buildup, and wear.
Care & Safety
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Always wear eye protection while using rotary tools.
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Clean burs with a soft cloth and mild soap after use to remove debris.
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Store burs in a dry container to prevent corrosion and maintain cutting performance.
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Features
Premium Tungsten Vanadium Steel: Engineered for maximum strength, wear resistance, and long-lasting performance.
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Precision-Ground Cutting Teeth: Designed for ultra-smooth and controlled cuts, reducing chatter and material distortion.
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Multi-Functional Use: Ideal for engraving, stone setting, shaping, smoothing, deburring, texturing, and drilling metals such as gold, silver, platinum, and other non-ferrous materials.
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Round Bur Shape (Fig. 1): Allows for access to curved surfaces, tight corners, and intricate design details.
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Industry-Standard Shank Size: 3/32" (2.35 mm) fits securely into most rotary tools, including Dremel, Foredom, and other flex shafts or micromotor handpieces.
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Consistent Length: Approximately 1-3/4" (45 mm), offering extended reach and improved tool control.
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Lubrication Compatible: Optimized for use with Busch Lube-Stik or similar cutting lubricants to minimize heat and prolong cutting edge sharpness.
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High-Speed Rated: Safe for high-RPM applications—refer to packaging for maximum recommended speeds per material.
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German Precision Engineering: Manufactured in Germany under strict quality controls to ensure consistent performance and exceptional durability.
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