A casing power tong is a hydraulic tool used on drilling rigs to make up (tighten) or break out (loosen) the threaded connections of casing pipes during the casing phase of drilling operations.

These tongs are essential for running casing into the wellbore efficiently and safely. They apply controlled torque to ensure proper connection of casing joints, which is critical to maintaining well integrity.

Key Features:
Hydraulic-powered for high torque and speed.
Includes a back-up tong to prevent pipe rotation.
Equipped with torque gauges or monitoring systems for precision.
Can be manual, semi-automatic, or fully automated.

Benefits:
Improves safety by reducing manual handling.
Speeds up operations compared to manual tongs.
Ensures proper torque to avoid casing damage or leaks.

In modern drilling rigs, casing power tongs are often integrated with automated pipe handling systems to further enhance efficiency and reduce risk.