| |
85 BT 408 H
| 85 ВТ 408 Н (БИТ3-85М4) |
IADC S123 |
| Outside diameter, mm |
85 |
| Number of cutters, PDC-10/13,5, units |
36 |
| Diameter of flushing holes, pcs. mm |
4х9 |
| Height, mm |
255 |
| Coupling thread GOST 28487-90/API |
З-66 |
| Rotary speed, RPM |
100…500 |
| Flushing fluid rate, l/sec |
1,6…7,5 |
| Pressure drop on a bit, atm. |
0,3…6,0 |
| Load,t |
0,5…2,5 |
| Rotator type |
rotor, HDM |
|
