The High Speed Steel Bur Reamer, Size 30 (8 mm) is a precision-engineered cutting tool built for professional jewelers, engravers, and metalworkers who expect accuracy, strength, and long-term reliability. Made from premium High Speed Steel, this reamer delivers exceptional cutting performance, heat resistance, and durability—perfect for demanding jewelry fabrication and metal shaping environments.

Featuring a precision reamer-style cutting head, this tool provides smooth and controlled material removal. It is ideal for enlarging holes, refining drilled openings, adjusting mountings, preparing tube settings, or shaping metal surfaces. Its spiral-ground flutes ensure smooth chip clearance, clean edges, and minimal vibration, reducing the need for time-consuming hand finishing.

The standard 3/32" shank ensures compatibility with all popular flex-shaft handpieces, micromotors, and rotary tools. The 8 mm cutting diameter (Size 30 / In-Pul. 0.315") allows for accurate, consistent enlargement on various materials. Operating efficiently between 10,000–20,000 RPM, this reamer offers excellent control for engraving, carving, shaping, and detailed metalwork.

Highly versatile, the Size 30 reamer works effectively on metal, wood, plastic, and stone, making it suitable not only for jewelers but also for artisans, sculptors, and crafts professionals. Whether refining a bezel, adjusting a ring shank, or carving intricate surface details, this High Speed Steel bur ensures precision, efficiency, and a superior finish.

Key Benefits

• Precise and smooth enlargement for holes and openings

• High Speed Steel durability for long-lasting performance

• 8 mm reamer head (Size 30) ensures accurate cutting

• Wide RPM range (10,000–20,000) for controlled shaping

• Versatile for engraving, carving, shaping, and reaming

• Works on metal, stone, wood, and plastic