Professional-grade tricone roller cone drill bits engineered for demanding drilling operations in medium to hard geological formations. These industrial drilling tools deliver reliable performance and extended service life in challenging conditions.

1. Before running the drill bit, ensure the well bottom is clean, free of grit, and without metal debris
2. Verify thread connection screws are intact and nozzles are properly installed
3. Run in hole steadily, avoiding stress and preventing drilling during descent
4. Use large displacement on the last joint to start the rotary table and maintain reaming to bottom, thoroughly washing the well to prevent nozzle clogging
5. Contact bottom hole with light pressure and slow rotation: small drilling pressure, low speed, large displacement, small torque, with speed maintained at 40-60 rev/min for at least 30 minutes
6. Determine optimal weight on bit and speed based on actual formation conditions
7. Maintain smooth operation during drilling with uniform drill feeding; avoid sharp lifting/releasing, poor drill string braking, or free fall
8. Immediately lift the drill for inspection if progress stops, pump pressure fluctuates significantly, penetration rate decreases suddenly, or torque increases