The high concentration of diamonds ensures a faster cutting speed, while the high quality of the diamonds ensures a longer life of the blade. It has passed the EN13236 test to achieve the best grinding effect at the highest speed up to 12,250 rpm. Special Design: The professional tools with excellent performance in terms of cost due to the use of high quality high temperature resistant diamonds resist impact and high temperature and reduce vibration by using precision tool holders, more efficient and durable. Grinding segments with heat treated steel body, which increase the durability and life of the grinding wheel. Ventilation holes for fast grinding, dry or wet with long life. Wheels for angle grinders, used in concrete, marble, granite, clay, gypsum stoneware, sandstone natural slate, artificial and natural stones, masonry, screed. These are high quality disc grinding wheels, suitable for grinding marble, ceramic tiles, concrete and stones. High diamond concentration can improve