... 2.Hole size:16mm,20mm 3.Usage:cut and polish granite,marble,glass,concrete,ceramic,til diamond disc1.Dimensions:1) Diameter: 100mm ... ;2)Thickness:0.8-1.0mm available;3) Hole size: 16mm,20mm ... ,special hole size is accepted.2. Diamond grit: 40 - 120 available.3. Coating: nickel, chrome, titanium available. 4.Smooth cutting ...