... ,3.17mm Grit:#100 #150 Total Length:45mm Jiangyin Lijian Diamond Abrasive Tools Co.Ltd.The main products are as follows ... :Electroplate Diamond Discs,Diamond Core Hole Drills,Diamond Needle Files and Resin-Bond Diamond and CBN Wheels.we can ... /30 PCS/SET UsingCrystal, Agate, Jewel, Jade, Optical Glass, Ceramics Electroplated Diamond Mounted Points