Sintered Diamond Burr: For CNC Jewelry & Lapidary Gem Cutting - 3.175mm 1/8" Shank

Carbide has nothing on these — when you need to cut harder materials than steel.

Developed in collaboration with a dental tooling specialist for Aetherium’s testing lab, these sintered diamond burrs redefine precision. Sintered means the diamonds run deeper than the surface, not just coated. That means a cooler cut, a consistent edge, and a lifespan that makes carbide feel disposable—one burr outlasts a box of standard diamond-plated bits.

Engineered for the hardest materials on earth, including gemstones, ceramics, and even glass, they move effortlessly from rough cutting to precision detailing. You can cut, carve, engrave, and shape gemstone geometry directly from CAD—turning digital design into CNC perfection.

Looking for a more traditional experience? load them up in the engraver tool on your cut n cab, and carve away.

Shank: 3.175mm
Red band: 280 grit
Yellow band: 600 grit

Designed for the modern maker.
Proudly made and tested in the Pacific Northwest, USA.

Every order supports Aetherium Innovations and our mission to design tools and technologies that remove barriers in the skilled art trades.