Seco Threading Insert, Laydown, Series: Snap-Tap, 16NRA Insert, 16 Insert, Internal Thread, 60 deg Partial Profile Thread Standard, 0.5 to 1.5 mm Pitch, 48 to 16 Threads per Inch, 9.5 mm Inscribed Circle, 3.5 mm Thickness, 16.5 mm Length, ANSI Code: 16NRA60 CP500, ISO Code: 16NRA60 CP500, 0.08 mm Corner Radius, 60 deg Included Angle, Manufacturers Grade: CP500, Right Hand Cutting Direction, Carbide, TiAlN/TiN, Material Grade: M