产品名称：The characters of Retrievable Spear
1. Has make-up limit mechanism which can guarantee reliable fishing tubing thread.
2. Transform larger torque to ensure back-off working is successful
3. Returnable mechanism will depart the string and fish top to prevent larger accidents.
2. Transform larger torque to ensure back-off working is successful
3. Returnable mechanism will depart the string and fish top to prevent larger accidents.
No. | Spec. | OD/mm | Connection Thread | Fishing Thread | Remarks |
1 | KHF-73 | 110 | 2 7/8TBG | 2 7/8TBG |
|
2 | KHF-89 | 145 | 3 1/2TBG | 3 1/2TBG |
|
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