Sandvik Coromant Threading Insert, Series: CoroThread 266, 266RG Insert, 16 Insert, Triangular Shape, External Thread, 60 deg Partial Profile Thread Standard, 0.039 to 0.079 in Pitch, 12 to 24 Threads per Inch, 3/8 in Inscribed Circle, 0.156 in Thickness, ANSI Code: 266RG-16VM01A001EE 7015, ISO Code: 266RG-16VM01A001EE 7015, A Chipbreaker, 0.005 in Corner Radius, 60 deg Included Angle, Manufacturers Grade: 7015, Right Hand Cutting Direction, Carbide, TiN, Material Grade: H