The grinding stones are used for grinding/polishing the copper layer of the gravure cylinder. Features: Coarse grinding stone and finishing grinding stone. Grinding stones in addition to an outstanding cutting performance when achieving fine roughness values. Our particular synthetic material has been developed especially for the stones mass in order to assist in the defined continuous removal of worn out abrasive particles. Spring-mounted abrasive wheels guarantee an even grinding pattern without chatter marks, score marks or other irregularities. Specifications: OD: 200mm ID: 100mm, 50mm TH: 50mm, 100mm Grade: #180, #280, #320, #400, #600, #800, #1000, #1500, #2000, #2500, #3000 Special specification can be customized as per customer's requirement.