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The Busch® Inverted Cone Single-Cut Burs, ISO #012, are expertly engineered to meet the high standards of professional jewelers, metalsmiths, and precision craftspeople. Known for their exceptional accuracy and durability, these burs feature an inverted cone design, ideal for precise metal removal, clean seat cutting, and fine surface finishing. Made from premium tungsten vanadium steel, they offer outstanding strength, wear resistance, and longevity. Each bur is precision-machined to ensure a uniform, consistent cut with every use. Proudly manufactured in Germany, Busch® Burs are recognized worldwide as the gold standard in quality and performance. Designed with a standard 3/32" (2.38mm) shank diameter and an overall length of approximately 1-3/4" (44.5mm), these burs are compatible with most rotary tools and flexible shafts. This package contains six burs, offering a practical supply for daily use or complex projects. Ideal for creating flat-bottomed undercuts, angled grooves, and precise seat cuts in irregularly shaped settings, the Busch® Inverted Cone Burs ISO #012 are a must-have for intricate jewelry work.
Upgrade your craftsmanship with the precision, reliability, and performance trusted by professionals around the globe—only from Busch®.
Brand: Busch®
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Material: Tungsten Vanadium Steel
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Shape: Inverted Cone
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Cut Type: Single-Cut
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ISO Standard: #012
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Shank Size: 3/32" (2.38mm)
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Head Diameter: 1.20mm
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Head Length: 1.06mm
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Total Length: 1-3/4" (44.5mm)
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Country of Origin: Germany
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Quantity: 1/2 Dozen (6 Burs)
About This Item
Busch® Inverted Cone Burs ISO #012 are crafted from premium tungsten vanadium steel, offering superior durability, heat resistance, and cutting precision. Each bur is individually precision-machined with evenly spaced teeth to deliver clean, controlled, and consistent results. Designed for professional use, these burs are perfect for seat cutting, undercutting, shaping, and refining surfaces in jewelry and metalworking.
Manufactured in Germany, Busch® Burs are internationally recognized for their exceptional quality and performance, making them a trusted tool for jewelers, engravers, and metalsmiths worldwide.
How to Use
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Insert the Bur: Secure the bur into a rotary tool such as a flex shaft, micromotor, or Dremel with a 3/32" collet.
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Cut with Light Pressure: Use steady, gentle pressure to avoid overheating or damage to both the bur and the workpiece.
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Use Lubrication: Apply a suitable lubricant like Busch Lube-Stik or cutting wax to minimize friction and extend tool life.
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Operate at Moderate Speeds: For best results and control, operate at low to medium RPMs, especially during fine detailing.
Safety Information
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Always Wear Eye Protection: Use safety glasses or goggles to protect from debris and particles.
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Clean After Use: Wipe the bur with a soft cloth and mild soap to remove residue and maintain sharpness.
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Store Properly: Keep burs in a dry, protective case to prevent damage and corrosion.
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Avoid Excess Force: Excessive lateral pressure can cause bur breakage or tool wear—let the tool do the work.
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Features
High-Quality Tungsten Vanadium Steel
Engineered for strength, longevity, and resistance to wear, ensuring precise and smooth cutting performance in professional applications.
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Inverted Cone Design
Ideal for creating flat-bottomed undercuts, tapered slots, and cleaning tight settings, offering superior control in detailed metalwork.
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Precision-Machined Teeth
Uniform, evenly spaced teeth deliver consistent, accurate cuts across a range of metals and materials, minimizing chatter and ensuring clean finishes.
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ISO #012 Standard Head Size
Suited for fine jewelry work, including gem seat preparation and detailed engraving or shaping, especially in tight or irregular spaces.
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Standard Shank Size – 3/32” (2.38mm)
Compatible with most rotary tools, including flex shafts, micromotors, and Dremel-style tools, for versatile use.
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Professional Length – Approx. 1-3/4” (44.5mm)
Provides comfortable handling, reach, and stability during intricate tasks.
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Made in Germany
Manufactured with precision and quality assurance in Germany, trusted by jewelers and metalsmiths worldwide.
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Convenient 6-Piece Set
Includes six identical burs—perfect for extended use, multi-project efficiency, or maintaining backups in your tool kit.
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