1028-Upgraded CNC milling inserts 45 degree quadrilateral SEKT1204AFTN turning steel parts stainless steel milling cutter disk milling insertsCNC milling inserts 45 degree SEKT Square Milling inserts 1. High temperature wear resistant performance is more stable High temperature sintering of high quality substrate makes the blade sharp and wear resistant, and it is not easy to be chipped by efficient machining. 2. Upgraded coating high wear resistance + impact resistance New upgraded coating grade, wear resistance increased by 50% on the basis of the old coating, and also has better chipping