PHYHOO 50Pcs Micro Diamond Grinding Burr Set Stone Carving Drill Bits Electric Grinder Accessories for Gemstone Jewelry Polishing

This set contains 50‑piece micro diamond grinding burrs, ideal accessories for electric grinders. Made of premium diamond grit, they deliver sharp cutting and stable grinding performance. Perfect for carving, polishing and shaping gemstones, jade and hard stones.These tiny diamond grind needles feature high hardness and long‑lasting service life. Multiple shapes meet different processing demands, from fine engraving to surface smoothing. Easy to install and replace, suitable for DIY handcraft and jewelry workshop use.Widely applied in stone engraving, jewelry trimming and detail polishing work. Compact burr design allows access to narrow and intricate areas. A practical replacement kit for hobbyists, goldsmiths and stone processing enthusiasts.