High-strength alloy steel
Adopts quenched & tempered alloy steel, anti-bending and anti-breaking for harsh underground working conditions.
Precision CNC machined threads
Tight connection with excellent sealing performance, no water leakage during high-pressure drilling.
Smooth inner bore design
Polished inner wall ensures smooth water flow, effectively preventing hole blockage and drill jamming.
Anti-rust & wear-resistant surface
High-temperature blackening treatment delivers great corrosion resistance and longer service life.
Wide compatibility & customizable sizes
Supports custom diameter, length and thread types, fits most mainstream drilling rig models.
Strict factory quality inspection
Each drill rod passes ultrasonic NDT and tensile testing, with official quality certificates available.
High concentricity for straight drilling
Integrated forging ensures high coaxiality, avoids drilling deviation and reduces bit wear.
Thickened reinforced threads
Reinforced threaded ends prevent slipping and deformation after frequent disassembly.
In stock with fast export delivery
Mass standard products in warehouse; custom export wooden packaging for long-distance shipping.
Professional one-stop technical service
We provide free model selection guidance and after-sales technical support for your drilling projects.