The High Speed Steel Ball Burs Size 11 (2.9mm) Round is a precision-engineered cutting tool designed for professional jewelers seeking accuracy, efficiency, and long-lasting performance. Made from premium high-speed steel (HSS), this bur ensures exceptional sharpness and durability, providing smooth and consistent cutting results across all jewelry metals.
The 2.9mm round head delivers precise spherical cutting ideal for stone setting, undercutting, carving, and finishing curved surfaces. Its geometry allows controlled material removal with minimal heat buildup, ensuring cleaner results and preventing damage to delicate metals. This makes it an essential bur for preparing stone seats, refining prong interiors, bezel adjustments, and micro-detail shaping in professional jewelry work.
Designed with spiral-cut precision flutes, this HSS ball bur ensures smooth cutting, reduced vibration, and efficient chip clearance, even at high speeds. The standard 3/32" shank (2.35mm) ensures full compatibility with professional flex shafts, micromotors, and rotary handpieces.
This bur maintains its cutting performance across gold, silver, platinum, brass, and other jewelry alloys, reducing tool replacement frequency and increasing workflow efficiency. It is a reliable tool for jewelers aiming for precise detailing and flawless craftsmanship.
The High Speed Steel Ball Burs Size 11 (2.9mm) Round delivers superior precision, long tool life, and consistent performance — an essential tool for professional jewelers.
Key Benefits
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Precision 2.9mm round head for flawless stone-seat shaping and micro-detail carving
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High-speed steel construction ensures long-lasting sharpness and durability
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Smooth cutting with spiral flutes minimizes heat and reduces metal damage
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Standard 3/32" shank for universal compatibility with jewelry handpieces
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Versatile for stone setting, carving, undercutting, and detailed metalwork