Polycrystalline Diamond Cutters: The cutters are man made, they have the hardness of a real diamond. They are used on concrete floor polishing machines, in the oil and gas industry in the drill bits and for water well drilling bits. The size that I am selling is 1308, they are 13 MM diameter by 8 MM thick. I am selling in a set of 50, I am not interested in selling them separately. $750., no haggle price, call (760)746-7209
