Email

Efficient Solutions for Tunnel and Pipeline Construction!

We specialize in providing high-performance drill bits designed for tunnel and pipeline projects, including directional bits, reamers, and core bits, tailored to meet various underground construction needs. SanLong drill bits offer superior wear resistance, precise steering capabilities, and high drilling speed, ensuring safe and rapid operations in urban infrastructure development, pipeline installation, and tunnel excavation.


Whether for municipal projects, underground transportation construction, or energy pipeline laying, SanLong drill bits provide reliable support to help your projects progress smoothly and reduce construction costs.


SanLong Drill Bits – Burrowing Through the Underground, Connecting the Future!


tunneling drill