30x40mm Diamond Concave Edge Bur – 240 Grit, 6mm Shank | Ring Rounding & Shaping Tool backing-magnetic Perfect as a gemstones grinding

Perfect as a gemstones grinding  wheel

The shaft have 3mm

reduced loading

gemstone detailing

including those requiring a 1 inch arbor diamond wheel

30x40mm Diamond Concave Edge Bur – 240 Grit, 6mm Shank | Ring Rounding & Shaping Tool backing-magnetic Perfect as a gemstones 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.