Our Fine Grit Diamond Series is the crystal type with yellow color and high transparency and low impurity content. It provides premium performance in impact toughness, static pressure strength, and thermal stability. EA-F280 Perfect cube-octahedral shape, extremely high strength, very high purity, extremely high thermal stability. Application: sawing and cutting hard stones such as granite and reinforced concrete and dressing tools. Suitable for Vitrified bond and Electroplated system. Available sizes: 80/100 - 325/400 EA-F270 Cub-octahedral shape, high strength, high purity, high thermal stability. Application: Core drilling, glass grooving, ceramic, grinding granite and tungsten carbide. Suitable for Vitrified bond and Electroplated system. Available size: 80/100 - 325/400