... your request;3. Suitable for cutting, drilling various hard non-ferrous materials, such as marble, granite, glass, ceramic, hard concrete and brick;4. High ... .5, Cutting granits,concrets,rebars,ceramics,glass,woods,plastics and so on,which is highly efficient.6, Strong structure ... Diamond Wheel Blade, Diamond Grinding Paste etc. many types and long life vucumm brazed Core Drill Bit for marbles