Sandvik Coromant Threading Insert, Series: T-Max® U-Lock, L166.0L Insert, 11 Insert, Triangular, Internal, UN, 24, 1/4 in Inscribed Circle, 1/8 in Thickness, ANSI Code: L166.0L-11UN01-240 1020, ISO Code: L166.0L-11UN01-240 1020, A Chipbreaker, 60 deg Included Angle, Manufacturer's Grade: 1020, Left Hand Cutting, Carbide, PVD-TiN Coated, Material Grade: H, K, M, N, P, S