The PD2 grade has a PCD grain size smaller than 1 micron, which delivers high edge toughness and wear resistance characteristics. According to NTK, end users are able to cut at speeds beyond 220 m/min, with depths of cut from 0.1 to 0.25 mm.
PD2 is available as a positive insert with a CCMT, DCMT and TPMT geometry that provides a PCD cutting edge length of 2.3 mm with the option of a 0.2 or 0.4 mm corner radius.
Negative type PD2 inserts, available with CNMX, DNMX and TNMX geometries, have a cutting length of 3.4, 4.5 and 3 mm, respectively. The three insert types are available with a corner radius of 0.4 or 0.8 mm.
