Fast delivery Rotary Drill Pipe - Concentric Casing System – TDS
Fast delivery Rotary Drill Pipe - Concentric Casing System – TDS Detail:


A driver bit and a ring are assembled to a complete concentric system bit which is suit for 114-1067mm diameter tube.
Advantage:
1. Enhance penetration and perpendicularity
2. Reduce torque requirements
3. Deal with straight, oblique hole and other angle holes
4. Lowest effect with environment
External dia.(mm): 125/155/188/215/238/276/293/345/375/432…1090
Casing dia.(OD*ID,mm): 114*102/139*127/168*153/194*181…1067*1041
| Outer Dia Of Casing Tube (mm) | Inner Dia Of Casing Tube(mm) | Reamed Dia(mm) | Min Inner Dia Of Casing Shoe(mm) | Drill Pipes(mm) | Max.Outer Dia of Normal Bit(mm) | 
| 114 | 101-103 | 127 | 91 | 76 | 77 | 
| 127 | 114-116 | 136 | 101 | 76 | 82 | 
| 140 | 124-127 | 152 | 117 | 76 | 92 | 
| 146 | 127-132 | 154 | 117 | 76 | 105 | 
| 168 | 149-155 | 184 | 140 | 76 | 105 | 
| 178 | 159-165 | 194 | 150 | 76.89 | 125 | 
| 193 | 173-180 | 206 | 164 | 76.89 | 140 | 
| 219 | 199-206 | 234 | 184 | 89.114 | 150 | 
| 244 | 224-231 | 260 | 210 | 89.114 | 165 | 
| 273 | 251-257 | 305 | 240 | 114 | 190 | 
| 323 | 301-310 | 348 | 284 | 114.127 | 220 | 
| 406 | 382-388 | 440 | 364 | 127 | 255 | 
| 457 | 433-439 | 488 | 413 | 140 | 340 | 
| 508 | 484-490 | 538 | 464 | 140 | 385 | 
| 558 | 534-540 | 590 | 514 | 140 | 440 | 
| 610 | 586-592 | 642 | 566 | 140 | 485 | 
| 660 | 636-642 | 694 | 615 | 168 | 540 | 
| 711 | 687-693 | 745 | 665 | 168 | 590 | 
| 762 | 738-744 | 798 | 716 | 168 | 640 | 
| 863 | 839-845 | 900 | 815 | 168 | 685 | 
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We have now a specialist, efficiency staff to provide good quality company for our consumer. We normally follow the tenet of customer-oriented, details-focused for Fast delivery Rotary Drill Pipe - Concentric Casing System – TDS , The product will supply to all over the world, such as: UAE, Switzerland, Kazakhstan, All of our products comply with international quality standards and are greatly appreciated in a variety of markets around the world. If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients in the near future.
This supplier's raw material quality is stable and reliable, has always been in accordance with the requirements of our company to provide the goods that quality meet our requirements.
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