KYOCERA Cera-Notch Threading Insert, Fine Pitch Positive, KCTK Insert, 2 Insert, External/Internal Thread, ISO/UN Thread Standard, 12 to 24 TPI Internal/14 to 44 TPI External Threads per Inch, 0.15 in Thickness, 0.505 in Length, ANSI Code: KCTK2RPR1215, ISO Code: KCTK2R PR1215, 0.003 in Corner Radius, 60 deg Included Angle, Manufacturer's Grade: PR1215, Right Hand Cutting Direction, Carbide, PVD-MEGACOAT