The High Speed Steel Ball Burs Size 15 (3.8mm) Round is a high-precision cutting tool designed for advanced jewelry applications that require accuracy, control, and reliable performance. Manufactured from premium high-speed steel (HSS), this bur provides outstanding durability, superior edge retention, and smooth cutting action, making it ideal for both daily bench work and high-detail jewelry production.
The 3.8mm round head offers a larger cutting surface, making it perfect for shaping deeper cavities, creating smooth recesses, widening stone seats, refining bezels, and performing controlled metal removal on larger design areas. Its spherical geometry ensures clean, uniform shaping while minimizing heat buildup, ensuring comfort and stability during extended use.
With its spiral-cut precision flutes, this bur ensures efficient chip removal, reduced vibration, and consistent cutting performance even at high rotational speeds. The standard 3/32" (2.35mm) shank provides universal compatibility with professional jewelry rotary tools, flex shafts, and micromotors, ensuring smooth operation for stone setters, bench jewelers, and metalsmiths.
The HSS composition allows this bur to maintain its sharpness through prolonged tasks, making it suitable for gold, silver, platinum, brass, and other jewelry alloys. Its robust construction reduces the frequency of bur replacements, enhancing workflow efficiency and supporting precise craftsmanship.
The High Speed Steel Ball Burs Size 15 (3.8mm) Round is essential for professionals who demand accuracy, long tool life, and dependable cutting performance—making it a critical addition to any jeweler’s tool collection.
Key Benefits
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3.8mm precision round head for deeper cavity shaping and smooth surface cutting
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High-speed steel construction delivers long-lasting durability
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Smooth, controlled cutting with minimal heat
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Ideal for jewelry detailing and metal shaping
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Professional-grade performance for stone setters and jewelers