Slick Drill Collar - 3 1/8 Specificaton & Trade Terms
| Model | 3 1/8 |
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| Place Of Origin | China |
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| Price Term | EX-Work |
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| Payment Term | T/T |
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The drill collars are made of 4145H modified chromium-molybdenum alloy steel acc. to API Spec.7 and SY/T5144. All threads can be phosphated, copperised or cold worked. All threads are machined with CNC Lathes-Double-Shouldered and special threads, the max diameter of drill collar is 14 inch.
Main products includes: slick drill collars, spiral drill collars, nonmagnetic drill collars.
Besides, elevator and slip recesses can be machined to meet the customers' requirements.
