Sandvik Coromant Thread Whirling Insert, Series: CoroMill 325, 325 Insert, 16 Insert, Triangular, External, HB, 1.75 mm Pitch, 3/8 in Inscribed Circle, ANSI Code: 325R16-175HBF01 1105, ISO Code: 325R16-175HBF01 1105, HB Chipbreaker, Positive Rake, Manufacturers Grade: 1105, Right Hand Cutting, Carbide, AlTiN, Material Grade: H, K, M, N, P, S