Seco, 02445355, Threading Insert, Laydown, Series: 11NR, 11NR Insert, Internal Thread, Whitworth Thread Standard, 19 TPI Threads per Inch, 0.25 in Inscribed Circle, 0.118 in Thickness, 0.433 in Length, A Chipbreaker, 0.006 in Corner Radius, 55 deg Included Angle, Manufacturer's Grade: CP500, Right Cutting Direction, Carbide