Busch Burr 77A Pearl Drill 3.10mm – a top choice for professional jewelers, delivering exceptional precision and quality to prevent chipping and create smooth, soft-edged holes in delicate materials such as pearls, coral, and ivory. Founded in 1905, Busch has established itself as a global leader in high-precision rotary tools, renowned for manufacturing durable, high-quality burs designed specifically for accuracy and reliability in fine jewelry making and restoration.

These Busch® Burs Pearl Drills feature a distinctive smooth flat head and a 3.10mm diameter, expertly crafted from strong, hardened tungsten vanadium steel. This ensures clean, flawless holes that protect the integrity of the nacre and other fragile organic materials. Each bur boasts a 4.2mm working head depth, optimized for delivering consistent and controlled results whether drilling new holes or enlarging existing ones.

Compatible with a wide range of rotary tools including pendant drills, micromotors, flex shafts, and pin vices, these burs provide jewelers with superior control and precision during delicate drilling operations.

For best results, pearls should be secured in a specialized pearl vice or held carefully with fingers wrapped in protective tape. Drilling should be performed underwater or with a coolant to prevent overheating and discoloration, preserving the pearl's natural beauty.

Designed for long-lasting durability and high performance, Busch® Burs are an essential addition to any jeweler’s toolkit, offering smooth finishes and fine detailing with ease. Their precision engineering and robust construction make them the preferred choice for artisans dedicated to excellence in jewelry craftsmanship.