Drill bit Parameters
Tri-cone bit type
4 1/2'' 217
API Pin Connection
2 3/8'' API REG
Medium hard with relatively higher compressive strength and hard stringers, such as shale, sandstone and limestone, etc.
This bit can sustain higher WOB under normal rotary speed.
Note: the upper limits for the bit weight and rotary speed recommend in the table can not be used at the same time.