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Busch® Burs - 90° Hart, ISO #012 Fig. 156C, 1.20 mm are expertly crafted from premium tungsten vanadium steel, ensuring exceptional durability and cutting performance. Engineered for smooth, accurate cuts, these precision burs are the trusted choice of professional jewelers who demand consistent, high-quality results. Manufactured in Germany, Busch burs are recognized for their sharpness, strength, and reliability in fine metalwork. Featuring a 90° Hart angle, this bur is ideal for detailed jewelry applications such as prong shaping, edge refinement, and delicate finishing work on various metals. With a 3/32" (2.38 mm) shank and a length of approximately 1-3/4" (44.5 mm), it is compatible with most rotary tools, flex shafts, and micromotors, offering exceptional control and versatility. The 1.20 mm diameter provides an excellent balance of precision and durability for intricate tasks.
For best performance, use light pressure and pair with a high-quality lubricant to minimize friction and extend the tool’s lifespan. Safe operating speeds are specified on the packaging. Always clean the burs with a soft cloth after use and wear appropriate protective eyewear during operation.
Brand: Busch®
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Product Type: 90° Hart Bur
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ISO Number: 012
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Figure: 156C
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Bur Head Diameter: 1.20 mm
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Cut Style: Cross-Cut – for smooth, even material removal
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Shape: Cylinder Square (90° Hart profile)
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Shank Size: 3/32" (2.38 mm) – fits standard rotary tools, flex shafts, and micromotors
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Overall Length: Approx. 1-3/4" (44.5 mm)
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Material: High-grade tungsten vanadium steel – engineered for durability and long-lasting sharpness
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Precision Teeth: Uniformly spaced for consistent, accurate cutting
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Country of Origin: Made in Germany – known for world-class engineering standards
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Recommended Use: Prong shaping, gem setting, edge refinement, fine detailing, and metal finishing
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Compatible Tools: Rotary handpieces, flex shafts, Dremel, Foredom, and similar precision tools
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Operating Guidelines:
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Pressure: Apply light, consistent pressure
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Lubrication: Use with Busch Lube-Stik or compatible lubricant to reduce friction and heat
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Speed: Refer to packaging for maximum safe RPM based on size
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Maintenance: Wipe clean with a soft cloth after each use to retain sharpness
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Safety Tips: Always wear protective eyewear and use proper tool handling practices
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Quantity per Pack: 6 precision bur
Additional
Information:
Busch® Burs are known in the jewelry industry for their exceptional
quality and precision. With uniformly spaced, precision-machined teeth,
these burs offer smooth, accurate cuts for detailed shaping and carving. Maximum
safe speed varies by bur size and is indicated on the box. Use with a
lubricant to extend tool life and optimize results.
How
to Use:
Attach the bur securely to a rotary tool, flex shaft, or Dremel. For
best performance, apply light pressure and use with a lubricant such as Busch
Lube-Stik to minimize friction and maintain sharpness.
Safety
Information:
Always wear eye protection when using Busch® Burs. After each use, clean
the burs with a soft cloth to preserve their sharpness and ensure long-lasting,
consistent performance.
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Features
Premium Material: Manufactured from high-quality tungsten vanadium steel for superior durability, hardness, and corrosion resistance.
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Precision-Cut Teeth: Uniform, machine-cut flutes ensure smooth, vibration-free operation with clean and consistent material removal.
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90° Hart Angle: Ideal geometry for precise control in tight areas—especially useful for prong shaping, pave work, and bezel adjustments.
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Fine Head Diameter: 1.20 mm head size allows for high-precision tasks in small and delicate jewelry settings.
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Universal Compatibility: 3/32" (2.38 mm) shank diameter fits most rotary tools, including Dremel®, Foredom®, and other flex shaft systems.
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Optimized Length: Approximately 1-3/4" (44.5 mm) total length provides a comfortable balance between reach and control.
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Cross-Cut Fluting: Engineered to enhance chip removal, reduce clogging, and improve efficiency on a variety of metals.
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Multi-Material Use: Effective on gold, silver, platinum, brass, copper, and other non-ferrous metals.
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Versatile Application: Perfect for gem setting, metal engraving, shaping, detailing, and surface texturing.
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Cool Operation: Use with Busch Lube-Stik or another quality lubricant to reduce friction and heat for longer tool life.
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Made in Germany: Precision-engineered under rigorous standards for unmatched performance and consistency.
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Safe & Reliable: Safe maximum speed marked on packaging; intended for professional jewelers and metalsmiths.
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Cost-Effective Pack: Comes in a pack of 6 burs—ideal for workshops and repeat-use applications.
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