Sandvik Coromant Milling Insert, Series: CoroMill 490, 490R/L..M-PM Insert, 08T312 Insert, Squared, 0.335 in Inscribed Circle, 0.13 in Thickness, 0.335 in Width, 0.335 in Length, PM Chipbreaker, 0.047 in Corner Radius, Positive Rake, 90 deg Lead Angle, 0.1102 in Hole Dia, Manufacturers Grade: 4220, ANSI Code: 490R-08T312M-PM 4220, ISO Code: 490R-08T312M-PM 4220, Right Hand, Carbide, MTCVD-TiCN+Al2O3+TiN Coated, Material Grade: K, P, Cast Iron and Steel Material Application