
COMPATIBILITY FIRST
DLC™ drill pipe is built for customers who value compatibility first, with practical performance and more flexibility in how drill pipe is sourced and managed.

COMPATIBILITY COMES FIRST
Most customers do not want another proprietary connection. DLC™ is compatible with Delta™ – the widely adopted and field-proven 4th generation rotary shouldered connection.
Compatibility creates a practical path forward. It supports existing infrastructure, works within real operating environments, and helps customers evaluate new options without unnecessary disruption.
The first value of DLC™ is simple: compatibility you can use.
WHY DLC™
DLC™ starts with compatibility, giving customers a way to make a change without starting over. It also reflects the practical advantages that matter when selecting and managing drill pipe: field performance, day-to-day usability, and a more workable approach to supply and manufacturing.
INDEPENDENT AND FLEXIBLE
As an independent option, DLC™ offers customers more flexible supply paths than many connection families. That creates practical choices based on what best fits the operation, the asset condition, and the commercial reality.
DLC™ is a strong fit for customers who value compatibility first, but also want more control over how their drill pipe is sourced and managed.

Drill Pipe
For customers looking for a full supply solution, DLC™ drill pipe is available as a fully specified product built for demanding applications.

Connection Conversion
For customers looking to diversify vendors or extend the life of dormant assets, partial or complete drill strings can be converted to DLC™ connections.
More Info

Specialized Supply
For customers with strategic sourcing goals or specific manufacturing requirements, DLC™ connections can be supplied independently of downstream processes such as welding or IPC application.
DLC™ SPECIFICATIONS
| Connection | OD x ID | Standard Makeup | Enhanced Makeup | Tensile Strength |
|---|---|---|---|---|
| DLC™ 425 | 5.250″ x 3.000″ | 26,000 ft-lbs | 30,300 ft-lbs | 786,400 lbs |
| DLC™ 544 | 6.625″ x 4.000″ | 50,300 ft-lbs | 58,700 ft-lbs | 1,211,500 lbs |
Other configurations are available. Properties subject to change; contact us for the latest specifications.
Drill Pipe Data Sheets
DLC™ 425 – Drill Pipe
4.500″ x .337″ Wall – S135 – R2
DLC™ 544 – Drill Pipe
5.500″ x .361″ Wall – S135 – R2
Field Inspection
Coming Soon
Keep Compatibility, Ditch Captivity
Whether you need drill pipe, are evaluating a conversion, or exploring alternative supply options, DLC™ can help you determine the right path.
NOTICE OF NON-AFFILIATION AND DISCLAIMER
DLC™ Drill Pipe is not affiliated with, associated with, authorized by, endorsed by, or officially connected with Grant Prideco Inc. or any of its subsidiaries or affiliates. All product and company names are trademarks™ or registered® trademarks of their respective owners. Their use on this website does not imply any affiliation with or endorsement by them.
LIMITATION OF WARRANTY
The information on this website is provided “as is” without any representations or warranties, express or implied. DLC™ drill pipe makes no representations or warranties regarding the accuracy, completeness, or suitability of the information contained on this website.