20mm Diamond Donut Bur – 400 Grit, 5pcs Rotary Tool Grinding Bits for Glass, Stone & Ceramic sintered diamond burs this system supports grinding

this system supports grinding

It’s especially effective as a glass polishing wheel or jewelry polishing  wheel

this disc provides a full 100% usable surface area—ideal for large-scale or detail-intensive projects requiring consistent contact and even pressure distribution

concrete surface smoothing

fast-cutting bits with brass or chrome-hardened steel cores for rapid material removal

20mm Diamond Donut Bur – 400 Grit, 5pcs Rotary Tool Grinding Bits for Glass, Stone & Ceramic sintered diamond burs this system supports grindingDiamond Drill Bits are precision tools for fine detailing and material processing. Discover the versatility of diamond drill bits, designed with durable diamond grit for aggressive cutting, precise shaping, and long lasting performance. Available in multiple gritscoarse (40,60,80,120) for rapid material removal, and fine(240,600,1200) for detailed engraving and polishing. These tools suit lapidary artists, jewelers, sculptors, and precision craftsmen.