Reliable Supplier Core Drill - Concentric Casing System – TDS
Reliable Supplier Core Drill - 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 support our consumers with ideal good quality merchandise and large level provider. Becoming the specialist manufacturer in this sector, we have attained wealthy practical encounter in producing and managing for Reliable Supplier Core Drill - Concentric Casing System – TDS , The product will supply to all over the world, such as: Indonesia, Greece, India, Our company has already have pass the ISO standard and we're fully respect our customer 's patents and copyrights. If the customer provides their own designs, We will guarantee that they will likely be the only one can have that merchandise. We hoping that with our good products can bring our customers a great fortune.
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