Drill collar is a Welding Equipment product. Key specs — Origin: China (Mainland); Price Term: FOB.
Product Description
Drill collar
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Operative Standards: API Spec 7API Spec RP7G
Drill Collar Specifications:
Thread Type | OD / D | ID / d | Length /L | |||
mm | in | Mm | in | |||
NC26-35 | 88.9 | 3 1/2 | 31.8 | 1 1/2 | 9150 | |
NC35-47 | 120.7 | 4 3/4 | 50.8 | 2 | 9150 | |
NC46-62(4IF) | 158.8 | 6 1/4 | 71.4 | 2 13/16 | 9150 or 9450 | |
NC46-65(4IF) | 165.1 | 6 1/2 | 57.2 | 2 1/4 | 9150 or 9450 | |
NC50-70(41/2IF) | 177.8 | 7 | 71.4 | 2Â 13/16 | 9150 or 9450 | |
NC56-80 65/8REG | 203.2 | 8 | 71.4 | 2Â 13/16 | 9150 or 9450 | |
NC61-90 75/8REG | 228.6 | 9 | 71.4 | 2Â 13/16 | 9150 or 9450 | |
