Busch Cup Fig. 77B Burs 6 Pack (1.00mm2.90mm)

Trusted by jewelers around the world, Busch Fig. 77B Cup Burs are precision-engineered for smoothing and shaping prongs, bezels, and small surfaces. The concave cutting edge makes them ideal for rounding and finishing, particularly in stone setting and fine detail work.

Crafted in Germany from premium tungsten vanadium steel, these burs offer exceptional durability, sharpness, and control. The Fig. 77B corresponds to the European standard and matches the American Fig. 411ensuring compatibility with most jewelers rotary tools.

Each pack includes 6 burs in your selected size, ranging from 1.00mm to 2.90mm.

Features:

• Classic cup shape for rounding prongs and fine finishing
• Available in sizes 1.00mm to 2.90mm
• Sold in packs of 6
• Made from high-grade tungsten vanadium steel
• Compatible with standard rotary tools and flex shafts
• Manufactured in Germany by Busch, a trusted name in precision burs

Perfect for jewelers, setters, and metalsmiths who demand clean, consistent results every time.