Yamaloy: DCMT 11T304-PM Inset Gade QX520 DCMT Turning Inserts 55 Rhombic Insert Insert Grades QX520 (ISO P10-P35 M10-M30 K10-K30) Coated. An excellent general purpose grade for medium roughing on Steels, Stainless and Cast Irons. Chip Break…View more