Sandvik Coromant Threading Insert, Series: CoroThread 266, 266LG Insert, 22 Insert, Triangular, External, Metric, 4.5 mm Pitch, 12.7 mm Inscribed Circle, 5.563 mm Thickness, ANSI Code: 266LG-22MM01A450M 1020, ISO Code: 266LG-22MM01A450M 1020, A Chipbreaker, 60 deg Included Angle, Manufacturers Grade: 1020, Left Hand Cutting, Carbide, PVD-TiN Coated, Material Grade: H, K, M, N, P, S