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The Busch® Inverted Cone Single-Cut Burs, ISO #035, are meticulously crafted to meet the demanding standards of professional jewelers, metalsmiths, and fine craftsmen. Renowned for their exceptional precision, durability, and cutting performance, these burs feature a specialized inverted cone design that allows for accurate metal removal, precise seat cutting, and smooth surface refinement—even in tight or intricate areas. Manufactured in Germany using high-grade tungsten vanadium steel, Busch Burs offer outstanding strength, heat resistance, and long-term cutting performance. Each bur is precision-machined to ensure a uniform, consistent cut every time, minimizing chatter and enhancing the overall finish of your work. Busch tools are internationally recognized as some of the highest quality burs available in the industry. With a standard 3/32" (2.38mm) diameter shank and a total length of approximately 1-3/4" (44.5mm), these burs are compatible with most rotary tools, flex shafts, and micromotors, making them a versatile addition to any professional bench. This convenient pack of six burs ensures you’ll have a reliable supply for ongoing or complex projects. Ideal for creating flat-bottomed undercuts, tapered slots, and initiating seats in irregularly shaped bezels, Busch® Inverted Cone Burs provide the control and finesse required for high-precision jewelry work and fine detailing.
Enhance your craftsmanship with the long-lasting performance and trusted quality that define the Busch® name.
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: #035
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Shank Size: 3/32" (2.38mm) – standard for most rotary tools
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Head Diameter: 3.50mm
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Head Length: 0.1378" (approx. 3.5mm)
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Total Length: 1-3/4" (44.5mm)
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Country of Origin: Germany
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Quantity: 6 burs (1/2 dozen)
About this Item
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Made from high-quality tungsten vanadium steel for extended durability
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Precision-machined teeth for clean, consistent cutting performance
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Suitable for low-speed operation, providing better control and finish
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Compatible with most rotary handpieces including flex shafts and Dremels
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Ideal for:
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Creating flat-bottomed undercuts
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Tapered slotting
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Stone seat preparation
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General detail work in metals, wax, or wood
How to Use
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Insert the bur securely into a compatible rotary tool (e.g., flex shaft or Dremel).
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For best results, operate at lower RPMs with light pressure to maintain control and precision.
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Apply a bur lubricant such as Busch Lube-Stik to reduce friction, minimize heat, and extend tool life.
Safety Information
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Always wear eye protection when using rotary burs.
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Avoid excessive pressure to prevent breakage or overheating.
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After use, clean the bur with a soft cloth and mild soap or ultrasonic cleaner to maintain sharpness and performance.
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Features
High-Quality Tungsten Vanadium Steel
Engineered for exceptional durability, strength, and wear resistance—ensuring long-lasting sharpness and reliable cutting across a wide range of materials, including precious metals, base metals, wax, and wood.
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Inverted Cone Design
Ideal for creating precise seat cuts, tapered slots, flat-bottomed undercuts, and cleaning out settings with accuracy. Provides excellent visibility and control, especially in tight or irregular areas.
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Precision Machined Teeth
Each bur is CNC-machined with evenly spaced, single-cut flutes for smooth, chatter-free performance and consistent, professional-grade results.
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ISO #035 Standard Head
With a 3.50mm head diameter, this bur meets the ISO #035 standard, making it perfect for fine detailing, stone setting preparation, and other high-precision tasks in jewelry making.
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Standard Shank Size (3/32" or 2.38mm)
Compatible with most industry-standard rotary tools, including flex shafts, Dremels, and micromotors. Easy to mount and secure for stable operation.
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Optimized for Low-Speed Use
Performs best at lower RPMs, allowing for greater control, reduced heat buildup, and a superior finish—especially important for delicate metals and intricate work.
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Versatile Material Compatibility
Suitable for use on a variety of materials, including gold, silver, platinum, brass, copper, wax, and resin, making it a staple in both professional and hobbyist workspaces.
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Professional German Engineering
Proudly manufactured in Germany under strict quality control standards. Trusted by jewelers and metalworkers worldwide for unmatched precision and performance.
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Multipack Efficiency – Set of 6
Includes six identical burs to keep your workflow uninterrupted. Ideal for repetitive tasks, multi-project work, or keeping backups on hand.
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Supports Lubrication for Extended Life
Use with lubricants like Busch Lube-Stik to minimize friction, prevent clogging, and extend the life of each bur.
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