Geological Drill Rod (NQ / HQ / PQ Core Drilling Series)

Geological drill rods are the core load-bearing components in a core drilling system, responsible for transmitting torque and axial load between the drilling rig and the drill bit while ensuring stable tool guidance. The rods are compatible with NQ, HQ and PQ international standard systems and suitable for wireline core drilling and conventional geological drilling equipment. Manufactured from high-strength alloy structural steel and treated by quenching and surface strengthening processes, the drill rods feature excellent torsional strength, fatigue resistance and thread connection stability, meeting long-term operation requirements in deep-hole drilling and complex formations. They are widely applied in mineral exploration, geotechnical investigation and hydrogeological drilling projects.

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