In engineering, delta indicates the degree of difference.
For drill pipe connections,

Delta™ is the difference.

Grant Prideco is proud to introduce Delta™

The extensive development and testing of this connection focused specifically on our customer’s interactions with our products. Our goal was to create a high-performance product that is easier to run, robust, and more forgiving. It is the most balanced connection we have ever put to market, and its proprietary features reduce your total cost of ownership.


  • Balanced thread form
  • High strength tool joints
  • Operational envelope comparable to XT™
  • Better fatigue resistance

Ease of use

  • Faster makeup
  • Deeper stabbing
  • No stabbing guide required
  • Reduced tong gripping distance

Total cost of ownership

  • Reduced repair frequency
  • More refacing
  • Less recut loss