Sandvik Coromant Threading Insert, Series: T-Max U-Lock, R166.0L Insert, 11 Insert, Triangular, Internal, M, 0.5 mm Pitch, 6.35 mm Inscribed Circle, 3.175 mm Thickness, ANSI Code: R166.0L-11MM01-050 1020, ISO Code: R166.0L-11MM01-050 1020, A Chipbreaker, 60 deg Included Angle, Manufacturers Grade: 1020, Right Hand Cutting, Carbide, PVD-TiN Coated, Material Grade: H, K, M, N, P, S