Sandvik Coromant Milling Insert, Series: CoroMill® 390, R390..E-NL Insert, 170408 Insert, Rectangle Shape, 0.378 in Inscribed Circle, 0.187 in Thickness, 0.378 in Width, 0.687 in Length, NL Chipbreaker, 0.031 in Corner Radius, Positive Rake, 90 deg Lead Angle, 0.1614 in Diameter Hole, Manufacturer's Grade: H13A, ANSI Code: R390-17 04 08E-NL H13A, ISO Code: R390-17 04 08E-NL H13A, Right Hand of Insert, Carbide, Uncoated, Material Grade: N, Non-Ferrous Metals Material Application