Busch Burr 77A Pearl Drill 2.90mm – a top choice for professional jewelers, delivers precision and quality to prevent chipping and create smooth holes in delicate materials like pearls. Established in 1905, Busch is a world leader in high-precision rotary tools, renowned for their durable, high-quality burs tailored for precision and reliability in jewelry making.

These Busch® Burs Pearl Drills feature a unique smooth flat head and a 2.90mm diameter crafted from strong hardened steel, ensuring clean, soft-edged holes without damaging the nacre. Each bur has a 4.2mm working head depth, designed for consistent results whether drilling or enlarging pre-existing holes. Use them with various compatible drills, such as pendant drills, micromotors, or a pin vice, to maintain control and precision.

For optimal results, pearls should be held in a pearl vice or in fingers wrapped with protective tape and drilled under water to prevent overheating and discoloration. Busch® Burs are crafted for long-lasting performance and are essential for any jeweler’s toolkit, offering smooth finishes and fine detailing with ease.