Common specifications: φ98/153, φ98/153/203, φ120/153/203, φ120/153/2038245, φ120/165/203/245/275, etc. Other specifications and special requirements can be customized according to specific requirements.
The tower-shaped reaming drill bit consists of a drilling drill bit and several reaming drill bits. Both the drilling drill bit and the reaming drill bits are adaptable to the same drilling rig, and they can be detachably installed on the installation ends of the drilling rig. It features good stability, high rigidity, excellent anti-tilt effect, high drilling efficiency, one-time hole formation, avoiding multiple drill pipe retrievals, and strong adaptability.
Common specification（mm） | 98~153~203 | 120~165~203 | 120~165~203 ~245~275 | |
Bit parameters | Series | 3 | 3 | 5 |
Main cutter dimensions（mm） | 13.44 | 13.44 | 13.44/15.88 | |
Main cutter number | 30 | 30 | 60 | |
Gauge cutter | Cemented carbide | Cemented carbide | Cemented carbide | |
Number of holes | 8 | 8 | 14 | |
Drilling parameters | Drilling pressure（kN） | 20~40 | 20~40 | 30~50 |
Rotary speed（rpm） | 200~350 | 150~300 | 100~260 | |
Pump capacity（L/min） | 150~300 | 150~300 | 200~480 | |
