It is in cutting various kinds of hard and brittle materials such,limestone,cement,asphalt,granite etc. Diamond Saw Blade-segment the general specification:Diameter: 105mm-400mm(4''-14'')Hole diameter :20,22.2/25.4mmSegment thickness: 1.8-2.8mmSegment height: 7.5,10/12mmSegment number: 8-24