diamond grinding disc: 1.Size:100mm 2.Hole size:16mm,20mm 3.Usage:cut ... ,concrete,ceramic,til diamond grinding disc1.Dimensions: 1) Diameter: 100mm; 2)Thickness:0.8-1.0mm available; 3) Hole size: 16mm,20mm,special ... . Cutting and grinding. 6.Usage: Suitable for cutting various hard Non-ferrous materials, such as marble, granite, glass, ceramic,hard tile ...