Symmetrix Bits
Uru
1. nhazi nke concentric bụ ihe a pụrụ ịdabere na ya na nke dị ntakịrị karịa eccentric.
2. nnukwu mmetụta ike na-eme ka mkpọpu ngwa ngwa dị elu.
3. oghere kwụ ọtọ.
4. dị mfe ịgbaso casing.
5. tụgharịa ntụgharị na ịdọrọ pilot bit iji ya maka oghere ndị ọzọ.
A | B | C | D | E | F |
Mpụta Dia.nkeIgwe mkpuchi tube | Dia n'ime.nkeIgwe mkpuchi tube | Reamed Dia. | Min.Dia n'ime.nkeAkpụkpọ ụkwụ casing | Ụdị hama | Ọkụkụ ọkpọkọ |
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 |
Ntuziaka usoro: A+B+C+D+G
Dee ozi gị ebe a ziga anyị ya