Diamond polishing disc fi150 mmThe diamond polishing disc is commonly used for polishing and grinding surfaces such as concrete, microcement, stone, stoneware and granite. The grinding disc is valued for its durability and ability to effectively machine hard materials. As each layer of microcement needs to be sanded to achieve a smooth surface, a concrete grinding disc will be ideal. A diamond grinding disc is more efficient than sandpaper and is sufficient to sand a larger area of