... .5mm , 5mmthickness: 1.1mm2.Sythetic diamond single crystals for drilling tools, grinding tools, cutting tools,16/18 ,18/20 ,20/25 ,25/30 ,30 ... /270 ,270/325 , 325/4003.RVD diamond crushing material for grinding tools,100/120 230/270120/140 270/325140/170 325/400170 ... /200 400/500200/230 500/6004.Diamond micro powder for grinding tools, polishing toolsFor polishing: 0-0.5,0-1,0.5 ...