BGTEC Diamond Turbo Row Grinding Cup Wheel for Marble Concrete Masonry 180MM

【Size】Diameter:4.5inch/115mm,Thread:M14,Segment thickness:5MM,Steel Core:3mm,Grits:40/50;Max RPM 8700 【Highly Quality Materials】Strong and Durable, high concentration of diamonds by Sintered Technology.Made of heat-treated steel body, 3mm strong steel core can bear tough work;5mm segment depth for long service life 【Fast Sanding Efficiency】Large grinding segments with heat treated steel bodies,Sintered segment made of high quality diamonds with #40/50 are more aggressive.Save your time and Save labor cost 【Easy to operate】diamond grinding wheels are easy to operate and install, which are suitable for grinders and angle grinders; Please follow the instructions of angle grinders and grinders 【Wide Application】can dry and wet grind,polish and Surface finish Concrete, Masonry, Granite Marble and some other construction materials,but with water is better