Medium grain sizes are used in high stock removal operations where some control of surface end is needed. Coarse grain sizes are used for billet conditioning and snagging functions in steel mills and foundries, where stock removing rates are important and there is minimal concern about surface finish. In summary, https://www.facebook.com/permalink.php?story_fbid=pfbid02oreJj44nGmhJZ8CsoLMmiGJruyBi1qTLCUm2eUmmYvHWTAYFynGLepoejKKZ2xirl&id=61562415773754&__cft__[0]=AZUT-HGxo7i8QRK6dfemxozz3PNuLoK8pBnJQN3G_qbYgztGCLc96wcuIumw5CRKn3ZWOxE4RCdkKXnuUGCeR8xkTfE0JkigvlLOS-ZP27-phHtTGUSZYylPB6TlKEd18ziJTS208vBp6bqrMdSYKrkzhDzT7oa2Pw9ko9hE12GFshO36HsrEl2ljW3wK-OSSVQeY1s5L3V6EWtZxSK7iOUK&__tn__=%2CO%2CP-R