Diamond cup wheels are the most efficient tools for fast grinding, rough deburring and smooth shaping and finishing of concrete, stone, and masonry material. Features: 1) Used for grinding and polishing stones 2) Grit: #30 - 200 3) Specifications: L130 / 140mm, H13 / 15mm 4) Other specifications upon customers' requirements Others 1) Our price is competitive and quality is stable and good 2) Our products last long life and give a sharp cut 3) Various specifications are available upon customers requirement