Suitable for using in grinding, high polishing, processing hard and brittle materials such as gems, ceramics, stone, carbide, for making abrasive paste, precision grinding pellets, stick, polycrystalline diamond, etc.
0-0.25, 0-0.5, 0-1, 0.5-1.5, 0-2, 1.5-3, 2-4, 2.5-5, 3-6, 4-8, 5-10, 6-12, 8-12, 10-20, 12-22, 20-30, 22-36, 36-54.