NINEROARS 4.5" Diamond Grinding Wheel Concrete Tools 18 Double Row Segments for Polishing and Cleaning Stone Concrete Surface, Cement, Marble, Granite Fits 7/8" Arbor - ZDGW2115M

• [Size] - Diameter: 115mm (4-1/2 ”) , Arbor diameter: 22.23mm (7/8 inch), Tooth Thickness: 5.0mm (0.2 inch). [Faster, smoother grinding] - 4.5 " concrete grinder wheel with 9+9 diamond segments design, effectively reduce side friction, ensure extremely high grinding speed. Diamond as a very hard material, can provide excellent grinding effect and wear resistance, so that the grinding wheel has a longer service life and higher grinding efficiency. [Durable and heat-treated steel body] - 4.5 " diamond concrete grinding wheel adopts integral sintering technology, making the body with high diamond hardness and longer service life. The diamond grinding section is heat treated to increase durability and grinding wheel life. In addition, the Angle grinder concrete wheel is also designed with 5 air holes to help cool and reduce wear. [Wet or dry, widely used] - 4.5 inch diamond grinding wheel can be used for concrete, granite, stone, marble, tile, masonry and other building materials dry/wet grinding. It is especially suitable for treating the uneven surface of concrete and removing flooding problems, recommended to use with angle grinders. [Dynamic balancing technology to ensure grinding accuracy] -4.5 inch double row grinding wheel adopts dynamic balancing technology, which ensures the grinding accuracy of the product after semi-finished product selection and finished product full inspection and screening. Both coarse and fine grinding can provide stable and efficient grinding results.