PD (Perfect Durability) or Titanium needles are the same great quality of Organ needles with the advantage of having a titanium nitride coating layered on the surface of the needle. With the titanium coating, these needles last up to five times longer than conventional chrome-plated needles. They are more wear resistant which reduces needle breakage, bending and distorting. Using PD Titanium needles means better quality stitches, less downtime, higher productivity and lower cost production.