Common specification(mm) | φ95 | φ127 | φ114 | φ146 | φ168 | |
Bit parameters | Blade numbers | 8 | 12 | 10 | 12 | 16 |
Main cutter dimensions(mm) | 13.44 | 13.44 | 13.44 | 13.44 | 13.44 | |
Main cutter number | 8 | 12 | 10 | 12 | 16 | |
Gauge cutter | Cemented carbide | Cemented carbide | Cemented carbide | Cemented carbide | Cemented carbide | |
Drilling parameters | Drilling pressure(kN) | 20~40 | 40~50 | 30~50 | 50~80 | 50~80 |
Rotary speed(rpm) | 150~300 | 100~200 | 100~260 | 100~200 | 100~200 | |
Pump capacity(L/min) | 150~300 | 200~300 | 200~300 | 250~480 | 250~480 |