3mm Shank Sintered Diamond Round Ball Shape Carving Burs for Lapidary, Jewelry & Engraving

The 2.35mm and 3mm Shank Sintered Diamond Carving Burs are premium sintered diamond rotary tools  engineered for lapidary work,jewelry making,glassengraving, and finecarving applications. Featuring a fully sintered diamond head with diamond particles embedded throughout, these burs provide exceptional durability, long lifespan, and consistent cutting performance compared to electroplated burs. Available in multiple head shapes—including flat end cylinder, tapered cylinder, inverted cone, round end cone, round end cylinder, bullet, pearl, flame, conical point, tapered inverted cone, drum, and round ball—each bur is tailored for specialized tasks such as carving, grinding, hollowing,engraving, andprecision detailing. With a 2.35mm and 3mmShank, these diamond carving burs are compatible with most rotary tools, micromotors, and flexShafts, and are offered in various diamond grits (70, 100, 170, 320, 600) to control material removal from rough shaping to fine finishing. Ideal for shaping gemstones,engraving glass,carving ceramics, or detailingjewelry, these sintered diamond  carving burs deliver unmatched precision, control, and reliability for both professional workshops and hobbyists studios.