20pcs /Pack 6mm Shank Diamond Grinding Heads Jade Carving Tools Grinding Needles Diamond Grinding Rods, 20pcs

1. Strong wear-resistant and durable
2. Multiple specifications, wide applicability
3. Use: mainly used for polishing and carving jade, crystal, jadeite, beeswax, amber, glass and hard objects, burr rounding, fast trimming, etc.
4. Packing: blue pvc plastic bags
5. Material: diamond electroplated grinding head + tungsten carbide handle
6. Grain size: 120 mesh
7. Shank diameter: about 6mm
8. Grinding head diameter: about 6-10mm
9. Length of grinding head: about 60mm
10. Weight: about 305g