Double row diamond cup wheel is one of the popular diamond cup wheel types. It is usually used on Angle Grinder, and the connection can be 22.23mm, M14 and 5/8-11". This tool is great for grinding granite, marble, and concrete. The common diamond grit range is 36#, 46#, and 60#. You can also choose other grit to suit your grinding works. Sunny SYF-K02 double row diamond cup wheel has high performance for grinding granite, marble, and concrete. We prepared 18 diamond segments on this 5 inch diamond cup wheel. These premium diamond segments are designed with excellent diamond formulas and can meet different hardness of concrete (extremely hard, very hard, hard, medium-hard, soft, very soft). High-quality artificial diamond particles and silver welding technology ensure its stable performance and long lifespan. Double row diamond cup wheel 5 inch with 18 diamond segments High performance for grinding granite, marble and concrete Can be used on the angle grinder and floor grinder Optional Specifications: Optional size 100mm, 115mm, 125mm, 150mm, 180mm, and 230mm Optional connection 22.23mm, M14, and 5/8"-11 Optional diamond grit 36#, 46#, 60# and others Optional bond type extremely soft, very soft, soft, medium soft, hard, and very hard