Seco Threading Insert, Laydown, Series: Snap-Tap, 16NRG Insert, 16 Insert, Internal, 55 deg Partial Profile, 1.75 to 3 mm Pitch, 14 to 8, 9.5 mm Inscribed Circle, 3.5 mm Thickness, 16.5 mm Length, ANSI Code: 16NRG55 CP500, ISO Code: 16NRG55 CP500, 0.2 mm Corner Radius, 55 deg Included Angle, Manufacturers Grade: CP500, Right Hand Cutting, Carbide, TiAlN/TiN, Material Grade: M