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The Busch® Round Burs – Fig. 1 – 3.50 mm (ISO #035) are crafted for high-performance precision work in jewelry making, metalsmithing, and fine detail engraving. Made from premium tungsten vanadium steel, these burs deliver outstanding durability, clean cutting action, and long-lasting edge retention.
Designed with precision-machined teeth, the Fig. 1 round shape allows for smooth, accurate cuts and excellent control, especially in tight or curved areas. Whether you're engraving delicate designs, setting gemstones, or deburring metal surfaces, these burs provide dependable performance across a wide range of tasks.
With a standard 3/32" shank and an approximate length of 1-3/4", they fit most rotary tools including Dremel, Foredom, and flex shafts.
To optimize performance and extend the lifespan of your tools, use a quality cutting lubricant like Busch® Lube-Stik during operation. Each pack includes 6 precision-engineered burs, made in Germany to the highest manufacturing standards.
- Brand: Busch®
- Shape: Round, Fig. 1
- Diameter: 3.50 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 burs
- Maximum Safe Speed: Refer to packaging or manufacturer's guidelines; use appropriate RPMs based on material
- Lubrication: Use of a cutting lubricant like Busch® Lube-Stik is highly recommended for smoother operation and extended tool life
- ISO Classification: #035
- Applications: Ideal for engraving, stone setting, deburring, drilling, surface texturing, and shaping metals such as gold, silver, platinum, brass, copper, and more
About this Item:
Busch® Round Burs (Fig. 1 – ISO #035) are precision-engineered tools made in Germany from high-quality tungsten vanadium steel. Known for their sharpness and durability, these burs maintain smooth, even cutting performance—essential for fine jewelry work, detailed engraving, and gemstone setting. With their round profile, these burs are excellent for working in recessed or curved areas, and the fine-tooth design ensures clean cuts with minimal finishing required. Whether used by professionals or skilled hobbyists, Busch burs are a go-to tool for reliable, precision metalwork.
How to Use:
Insert the bur into a compatible rotary tool collet (e.g., flex shaft, micromotor, or Dremel).
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Operate at the proper speed for your material and application (consult RPM guidelines).
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Apply light, consistent pressure to avoid tool stress.
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For best results, apply a lubricant like Busch Lube-Stik during use to reduce friction and heat buildup.
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After use, clean with a soft cloth and store in a dry container to preserve sharpness.
Safety Information:
Always wear protective eyewear and follow general workshop safety procedures.
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Do not operate the burs beyond their recommended speed.
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Discard burs that show signs of dullness or damage to avoid compromising tool performance or safety.
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Features
Premium Tungsten Vanadium Steel: Engineered from high-grade tungsten vanadium steel for exceptional hardness, resistance to wear, and extended tool life—even under demanding conditions.
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Precision-Cut Teeth: Provides clean, accurate, and consistent cuts with minimal chatter or vibration, reducing the need for additional finishing.
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Versatile Round Shape (Fig. 1): Allows easy access to tight areas, curved surfaces, and recessed details—perfect for gemstone seat preparation, texturing, and shaping.
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Professional-Grade Performance: Suitable for jewelers, watchmakers, dental technicians, and metalsmiths who require precise, dependable tools.
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Multi-Material Compatibility: Performs well on a wide range of materials including precious metals (gold, silver, platinum), base metals (brass, copper), plastics, and wax.
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Standardized Shank Size: 3/32" (2.35 mm) shank fits most rotary tools including Dremel®, Foredom®, and micromotor handpieces used in jewelry and precision work.
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Optimal Length: Approximately 1-3/4" (44 mm) provides excellent control and visibility while working under magnification or in tight spaces.
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Lubricant Use Recommended: Apply a cutting lubricant like Busch® Lube-Stik to reduce friction, enhance performance, and prevent premature dulling of the cutting edges.
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Pack of 6 Burs: Convenient multi-pack offers great value for professionals, studios, and repetitive-use environments.
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Consistent Quality: Each bur is individually manufactured and quality-checked in Germany to meet rigorous standards for reliability and consistency.
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Made in Germany: Crafted with meticulous attention to detail and industry-leading precision—trusted by professionals worldwide.
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