Sandvik Coromant Milling Insert, Series: CoroMill 490, 490R/L..M-PM Insert, 140412 Insert, Squared, 0.543 in Inscribed Circle, 0.154 in Thickness, 0.543 in Width, 0.543 in Length, PM Chipbreaker, 0.047 in Corner Radius, Positive Rake, 90 deg Lead Angle, 0.1614 in Hole Dia, Manufacturers Grade: 4230, ANSI Code: 490R-140412M-PM 4230, ISO Code: 490R-140412M-PM 4230, Right Hand, Carbide, MTCVD-TiCN+Al2O3+TiN Coated, Material Grade: K, P, Cast Iron and Steel Material Application