DKJ Type Reversing Spear for Internal Catch Fishing
The DKJ Type Reversing Spear is used when a stuck fish needs to be caught from the inside and reversed with left-hand torque. It is suitable for fishing jobs where the fish has an accessible internal bore and external catch tools are not the best option.
Unlike a reversing sub, this tool directly engages inside the fish. Therefore, it is mainly selected for internal catch recovery and controlled reversing operations.
When to Use
Use this tool when the recovery job requires:
- Internal engagement with the fish
- Left-hand torque transfer
- Controlled reversing above the stuck section
- An alternative to a left-hand taper tap
Selection Guide
| Selection Point | What to Check |
|---|---|
| Fish Access | Internal bore must be available |
| Catch Method | Internal grip |
| Torque Direction | Left-hand |
| Size Matching | Based on fish ID |
| Connection Check | Match with fishing string |
| Before Running | Confirm bore size and fish condition |



