... 3.0mmOther various size of synthetic diamond are available as follows:1. synthetic diamond for cuting tools, dressing tools, opitcs toolsAvailable size:3mm, 3 ... , 4mm, 4.5mm , 5mmthickness: 1.1mm2.Sythetic diamond single crystals for drilling tools, grinding tools, cutting tools,16/18 ,18/20 ,20/25 ,25 ... Grinding : 12-22, 20-30,22-36, 36-54 cultured diamond (industrial diamond, rough diamond)