... 3.Usage:cut and polish granite,marble,glass,concrete,ceramic diamond grinding disc1.Dimensions:1) Diameter: 100mm;2)Thickness:0 ... ) Hole size: 16mm,20mm,special hole size is accepted.2. Diamond grit: 40 - 120 available.3. Coating: nickel, chrome, titanium ... to your requirement. Advantages of Sunan1. Good quality and competitive price;2. Excellent after-sales service; 3. Shortest delivery and ...