This series of hydraulic power tongs using inner surface roller-climbing type clamping system with hydraulic backup tong. It is a special tool for making up or breaking out various oil pipes, small casings and small drill pipes in oilfield work-over operations.

 - can be equipped with the corresponding tong dies and jaw plate, special sizes of the teeth base, inserts can be customized;

 - Optional extended guide rod, used for backup tong clamp oil-pipe body;

 - Optional torque automatic control system.