·Adopting IDS equal wear design models
·Using C1, P2/P3, G2 crown types to improve drill bit guidance
·Employing low torque design technology to ensure balance force within the green standard and enhance maneuverability
·Adopting smooth cutting technology and over-center protection design technology to prevent bit cored
·Strengthening the hydraulic configuration of the internal cone to prevent mud cake in the center
·Utilizing T3, T4 high-performance cutters to enhance overall performance
·Using reverse cone tooth design to break large rock fragments in case of jamming
Size Range: 5 ⅞"~12 ¼"
Formation | IADC | Lithology | Bits Selection |
Soft | M221/S221 M222/S222 | Sandstone, Shale, Marlstone | M/S519*RS，M/S516*RS |
Medium | M322/S322 M323/S323 | Limestone, Sandstone, Conglomerate | M/S516*RS，M/S519*RS M/S619*RS |
Hard | M422/S422 M433/S433 | Tuff, Granite, Siltstone, Dolomite | M/S616*RS，M/S613*RS M/S716*RS，M/S713*RS |