Sandvik Coromant Milling Insert, Series: CoroMill 390, R390..M-PM Insert, 170408 Insert, Rectangle Shape, 0.378 in Inscribed Circle, 0.187 in Thickness, 0.378 in Width, 0.687 in Length, PM Chipbreaker, 0.031 in Corner Radius, Positive Rake, 90 deg Lead Angle, 0.1614 in Diameter Hole, Manufacturers Grade: 1130, ANSI Code: R390-17 04 08M-PM 1130, ISO Code: R390-17 04 08M-PM 1130, Right Hand of Insert, Carbide, AlTiCrN, Material Grade: M, P, Steel and Stainless Steel Material Application