Seco Threading Insert, Laydown, Series: Snap-Tap, 16NR Insert, 16 Insert, Internal, NPT, 11.5, 9.5 mm Inscribed Circle, 3.5 mm Thickness, 16.5 mm Length, ANSI Code: 16NR11.5NPT-G1 CP500, ISO Code: 16NR11.5NPT-G1 CP500, G1 Chipbreaker, 0.09 mm Corner Radius, 60 deg Included Angle, Manufacturers Grade: CP500, Right Hand Cutting, Carbide, TiAlN/TiN, Material Grade: M