Features:Using high-quality emery as raw material, it has characteristics of and wear-, smooth cutting and grinding, and wide range of objects. The diamond blade body is thickened, making it more , more efficient, dry grinding will not burn pieces, and longer service life. The diamond wheel is with high manganese steel as matrix, which is not easy to deform, the blade is welded firmly, the operation is , and grinding is more stable. This diamond grinding wheel is double row design, can effectively reduce drag and anti-slip, chipremoval is more smooth, grinding , better effect. Diamond grinding wheel is widely used, can be used in a variety of scenes, applicability is very strong: suitable for concrete, marble, , stone, wall, floor and so on. Specifications: Type: Segment Grinding Wheel Diameter: 115mm (4.5 in) Inner Hole Diameter: 22mm (7/8 in) Colour:red Material:Diamond Package Contents: 1 x Diamond Segment Grinding Wheel Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.