Diamond Mounted points(30PCS/SET) Shank Dia:2.35mm,3mm,3.17mm Grit:# ... with me directly. NameDiamond Mounted pointsShank Dia2.35mm,3mm,3.17mmGrit#100 #150Total Length45mm Packing8/10/12/20/30 PCS/SET UsingCrystal, Agate ... , Jewel, Jade, Optical Glass, Ceramics Electroplated Diamond Mounted Points