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slick drill collar:·1.Meeting to API7-1·2.OD:4 1/8"-11"·3.Length:5"-31"
| Place of Origin | Henan China (Mainland) | Model Number | API Spec |
|---|---|---|---|
| Type | Drill Collar | Machine Type | Drilling Tool |
| Certification | API | Material | allloy steel,4145H alloy steel |
| Processing Type | Forging | Use | Well Drilling |
| Details | slick drill collar: · 1.Meeting to API7-1 · 2.OD:4 1/8"-11" · 3.Length:5"-31" |
| Packaging Detail | Simple package suited sea shipment |
|---|---|
| Delivery Detail | 7-15 days after getting your prepayment of workable L/C. |
non magnetic spiral drill collar
1. The size 3-1/2” to 11” drill collar , spiral drill collar & short drill collar according to API Spec 7-1 standard we can manufacture.
2.The hear treatment technique is conducted in the range of full length of products.
3. The thread can be processed with cold roller according to the customer’s requirements. And also can be processed with phosphatization
| Connections | OD mm | ID mm | Length mm | |
| NC23-31 | 79.4 | 31.8 | 9150 | |
| NC26-35 | 88.9 | 38.1 | 9150 | |
| NC31-41 | 104.8 | 50.8 | 9150 or 9450 | |
| NC35-47 | 120.7 | 50.8 | 915 or 9450 | |
| NC38-50 | 127.0 | 57.2 | 9150 or 9450 | |
| NC44-60 | 152.4 | 57.2 | 9150 or 9450 | |
| NC44-60 | 152.4 | 71.4 | 9150 or 9450 | |
| NC44-62 | 158.8 | 57.2 | 9150 or 9450 | |
| NC46-62 | 158.8 | 71.4 | 9150 or 9450 | |
| NC46-65 | 165.1 | 57.2 | 9150 or 9450 | |
| NC46-65 | 165.1 | 71.4 | 9150 or 9450 | |
| NC46-67 | 171.4 | 57.2 | 9150 or 9450 | |
| NC50-67 | 171.4 | 71.4 | 9150 or 9450 | |
| NC50-70 | 177.8 | 57.2 | 9150 or 9450 | |
| NC50-70 | 177.8 | 71.4 | 9150 or 9450 | |
| NC50-72 | 184.2 | 71.4 | 9150 or 9450 | |
| NC56-77 | 196.8 | 71.4 | 9150 or 9450 | |
| NC56-80 | 203.2 | 71.4 | 9150 or 9450 | |
| 6 5/8REG | 209.6 | 71.4 | 9150 or 9450 | |
| NC61-90 | 228.6 | 71.4 | 9150 or 9450 | |
| 7 5/8REG | 241.3 | 76.2 | 9150 or 9450 | |
| NC70-97 | 247.6 | 76.2 | 9150 or 9450 | |
| NC70-100 | 254.0 | 76.2 | 9150 or 9450 | |
| 8 5/8REG | 279.4 | 76.2 | 9150 or 9450 | |
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