
Tools Application
Knuck Jars combine the functionalities of a Knuckle Joint and a Short Tubular Jar, providing the ability to jar a tool string with short strokes to release it. Similar to Knuckle Joints, Knuck Jars also feature a built-in double fishing neck.
Design Features & Benefits
- 7-degree deviation angle from the centerline
- Fish necks on lower parts for potential retrieval purposes
- Tailored connection options to meet customer needs
- Straightforward, sturdy design for user-friendly operation
- Hexagonal flats for secure assembly and disassembly
Technical Data
|
MAX OD (In) |
FISH NECK OD (In) |
THREAD CONNECTION |
|
1.250 |
1.187 |
15/16-10 UN |
|
1.500 |
1.375 |
15/16-10 UN |
|
1.500 |
1.375 |
15/16-10 UN |
|
1.875 |
1.750 |
1-1/16-10 UN |
|
2.125 |
1.750 |
1-1/16-10 UN |
|
2.500 |
2.312 |
1-9/16-10 UN |

