The High Speed Steel Ball Burs Size 13 (3.3mm) Round is a precision cutting tool crafted for professional jewelers who require accuracy, efficiency, and reliable performance. Made from premium high-speed steel (HSS), this bur provides exceptional sharpness, durability, and smooth metal cutting for detailed jewelry applications.

The 3.3mm round head is perfect for larger cavities, bezel shaping, and deep undercutting. Its spherical design ensures precise material removal while minimizing heat buildup, preventing damage to delicate metals. This bur is ideal for tasks such as stone-seat preparation, prong refining, cavity carving, and other detailed jewelry operations.

Designed with spiral-cut precision flutes, the HSS ball bur guarantees smooth cutting action, reduced vibration, and efficient chip clearance—even at high rotational speeds. The standard 3/32" shank (2.35mm) makes it fully compatible with professional flex shafts, micromotors, and rotary handpieces used in jewelry workshops.

Its durable steel construction maintains performance across gold, silver, platinum, brass, and other jewelry alloys. This reduces the need for frequent replacements, ensuring a consistent workflow and superior craftsmanship results. The High Speed Steel Ball Burs Size 13 (3.3mm) Round is a critical tool for jewelers seeking precision, control, and long-lasting performance.

Key Benefits

• Precision 3.3mm round head for accurate cavity shaping, bezel work, and detailed jewelry tasks.

• Durable high-speed steel construction ensures long-lasting sharpness and reliable performance.

• Smooth cutting action with minimal heat reduces metal damage and improves workflow efficiency.

• Ideal for stone setting, undercutting, carving, and prong refinement in all jewelry metals.

• Consistent, clean results for professional jewelers seeking high-quality craftsmanship.