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During the drilling process, it can use pressure differential in nozzle of drill stem inside and outside circulating process, so that the diameter changeable stabilizer can stretch it's bracing head more enough to make sure increasing hole angle and maintaining hole angle for differential drill tool in directional well.
| Working O.D. | Fishing O.D. | Connection. | I.D. | OAL | Fising Neck Length | Blade Length | Blade Wide |
| inch(mm) | inch(mm) | API | inch(mm) | inch(mm) | inch(mm) | inch(mm) | inch(mm) |
| 215~203 | 165.1 | NC50 | 55 | 1350 | 290 | 660 | 145 |
| When ordering or requesting quotation, if size out of above specification, pls. specify clearly. | |||||||
Diameter changeable stabilizers