... *20mm good quality competitive price long working life Electroplated Diamond Cutting Blade Coating width :16/18/20/25mmCore thickness : 0.6 ... 1,Coating :nickel,Ti,chrome avaiable2,Smooth cutting surface,high cutting speed3,Suitable for cutting various hard non-ferrous materials,such as ... marble,glass,ceramic,hard.4,Feature:Fast and smooth Cutting marble,glass, fibre glass,Ceramic/tile, and a variety ...