Downhole tool and Cementing tools Leading Manufacturer

A: Square Kellys are the industry standard for most conventional drilling rigs due to their lower cost. Hexagonal Kellys are typically used for high-torque applications or larger drill strings, as their six-sided design provides greater torque capacity and better balance.

A: We use AISI 4145H modified forged alloy steel. The entire bar is quenched and tempered to ensure consistent mechanical properties throughout its length, meeting or exceeding API requirements.

A: We use specialized hydraulic straightening machines and precision CNC lathes. Each kelly is checked for straightness over its entire length to prevent "whipping" during rotation, which protects your rotary table and swivel.

A: Yes. We offer a complete package, including Kelly Drive Bushings, Kelly Scabbards (protection tubes), and Kelly Valves, providing a one-stop solution for your rotary drive system.