Symmetrix Bits
Adavantage
1. iyo concentric dhizaini yakavimbika uye yakaderera torque pane eccentric.
2. simba guru rekuita kuti riite kukurumidza kuchera.
3. gomba rakatwasuka.
4. nyore kutevera casing.
5. Reverse rotation uye kubvisa pilot bit kuti uishandise pamakomba anotevera.
| A | B | C | D | E | F |
| Outer Dia.yeCasing Tube | Inner Dia.yeCasing Tube | Reamed Dia. | Min.Inner Dia.yeCasing Shoe | Hammer Type | Drill Pipes |
| mm | mm | mm | mm | mm | |
| 114 | 101-103 | 125 | 93 | TDS79 | 60 |
| 140 | 124-127 | 152 | 113 | TDS98 | 76 |
| 146 | 127-132 | 154 | 115 | TDS98 | 76 |
| 168 | 149-155 | 184 | 138 | TDS122 | 76,89 |
| 178 | 159-165 | 194 | 148 | TDS122 | 76,89 |
| 193 | 173-180 | 206 | 164 | TDS139 | 114 |
| 219 | 199-206 | 234 | 185 | TDS139,TDS180 | 114 |
| 244 | 224-231 | 273 | 219 | TDS180 | 114 |
Yekurongeka Inotungamira: A+B+C+D+G
Nyora meseji yako pano ugotitumira
