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Crafted from high-grade tungsten vanadium steel, Busch® 90° Hart Burs deliver exceptional strength and long-lasting sharpness, making them an essential tool for professional jewelers. Manufactured in Germany with precise engineering, these burs are renowned for their smooth, even cuts and reliable performance. The 90° Hart angle design provides optimal control for detailed tasks such as prong shaping, edge refinement, and delicate finishing on a variety of metals. The 1.80 mm diameter head offers excellent precision, perfect for intricate jewelry work requiring fine detail.
With a 3/32" (2.38 mm) shank diameter and an overall length of 1-3/4" (44.5 mm), these burs are compatible with most rotary tools, ensuring versatile and convenient use.
Brand: Busch®
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Type: 90° Hart Bur
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ISO Number: #018
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Figure: 156C
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Cut Type: Cross-cut for smooth, precise material removal
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Shape: Cylinder Square
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Head Diameter: 1.80 mm, ideal for fine, detailed jewelry work
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Shank Diameter: 3/32" (2.38 mm) – compatible with most rotary tools, flex shafts, and micromotors
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Overall Length: Approximately 1-3/4" (44.5 mm) for comfortable handling and control
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Quantity: Pack of 6 burs
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Material: High-grade tungsten vanadium steel for superior strength and long-lasting sharpness
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Manufacturing Origin: Made in Germany, ensuring premium quality and precision engineering
Additional Information
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Features uniformly spaced, precision-machined teeth to deliver smooth, consistent cuts for detailed shaping and carving.
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Maximum safe operating speed varies by bur size and is clearly marked on the packaging for user safety.
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Designed for professional jewelers and metalworkers who require accuracy and durability in their tools.
Usage & Maintenance
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Securely attach the bur to rotary tools such as flex shafts or Dremels for optimal performance.
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Use light pressure and apply a lubricant like Busch Lube-Stik to reduce friction and prolong bur sharpness.
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Always wear protective eyewear during operation.
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Clean burs with a soft cloth after use to maintain cutting efficiency and tool longevity.
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Features
Premium Material: Constructed from durable tungsten vanadium steel, offering exceptional strength and long-lasting sharpness for extended tool life.
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Precision-Cut Teeth: Uniformly spaced, precision-machined teeth deliver smooth, accurate, and consistent cutting performance.
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90° Hart Angle: Engineered for enhanced control and precision in intricate jewelry-making and metalworking tasks.
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Head Diameter: 1.80 mm size, ideal for detailed, fine work in small or tight settings.
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Compatible Shank: Standard 3/32" (2.38 mm) shank fits most rotary tools, flex shafts, and micromotors for versatile use.
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Optimal Length: Approximately 1-3/4" (44.5 mm) total length provides comfortable handling and excellent maneuverability.
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Cross-Cut Design: Enables efficient material removal while ensuring an even cut and smooth finish across various metals and alloys.
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Versatile Application: Perfectly suited for gem setting, shaping, engraving, texturing, and polishing in jewelry fabrication.
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German Engineering: Manufactured in Germany, known worldwide for precision craftsmanship and reliable performance.
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Pack Quantity: Supplied as a pack of 6 burs, offering great value and consistent availability for professional use.
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