The High Speed Steel Ball Burs Size 1 (1.05mm) Round is a precision-built cutting tool engineered for professional jewelers who require accuracy, efficiency, and consistent performance. Manufactured from high-speed steel (HSS), this bur provides exceptional sharpness, long wear life, and smooth metal cutting for detailed jewelry applications.
The 1.05mm round head delivers perfect spherical shaping, making it ideal for stone setting, prong interior work, drilling small cavities, and refining curved surfaces. Its precise geometry allows controlled material removal while minimizing heat buildup, preventing damage to delicate metals and ensuring cleaner results. This makes it a crucial tool for stone-seat preparation, bezel adjustments, undercutting work, and micro-carving tasks in fine jewelry manufacturing.
Designed with spiral-cut precision flutes, this HSS ball bur ensures smooth cutting action, reduced vibration, and efficient chip clearance—even at high rotational speeds. It is constructed with a standard 3/32" shank (2.35mm), ensuring full compatibility with professional flex shafts, micromotors, and rotary handpieces used in jewelry workshops worldwide.
Its premium steel composition maintains cutting performance across gold, silver, platinum, brass, and other jewelry alloys, offering extended durability and reducing tool replacements. This results in increased productivity, consistent craftsmanship quality, and better control for professional bench jewelers.
The High Speed Steel Ball Burs Size 1 (1.05mm) Round is built for precision, reliability, and longevity — making it an essential tool for jewelers aiming for flawless detailing and superior results.
Key Benefits
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1.05mm precision round head for fine detailing
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High-speed steel construction for long tool life
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Smooth, clean cutting with low heat generation
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Ideal for stone setting and micro-carving
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Reliable results for professional jewelers