>
>
2026-01-27
In the highly competitive drilling and construction equipment market, selecting the right tools makes all the difference. Contractors, mining engineers, and water well specialists are constantly seeking drilling solutions that can deliver faster penetration, higher reliability, and lower operating costs — even in challenging hard-rock formations. That’s where the DHD 350 Down-The-Hole (DTH) Drilling Tools step in — engineered to deliver superior performance for mining, water well drilling, geotechnical work, and other industrial applications.
Down-the-Hole (DTH) drilling is a highly efficient percussion drilling method used to penetrate rock and soil with minimal energy loss. In DTH drilling, the hammer mechanism is positioned directly above the drill bit at the bottom of the drill string, allowing compressed air to drive a piston that delivers powerful, repetitive strikes to the bit. This mechanism reduces energy dissipation and results in higher penetration rates and consistent drilling performance, regardless of hole depth.
Compared with traditional top-hammer systems, DTH drilling offers:
These advantages make DTH drilling the go-to choice for demanding jobs in mining and deep water well operations.
The DHD 350 Down-The-Hole Drilling Tools are built to excel in rock, quarry, and deep geological formations. Designed with durability and performance in mind, these tools are suitable for a wide range of drilling applications, including:
With robust engineering and high-grade materials, DHD 350 tools provide consistent drilling speed and longevity, even in abrasive conditions.
Here’s what makes the DHD 350 stand out:
Thanks to the direct impact design — where the piston strikes the bit with minimal energy loss — DHD 350 tools maintain a nearly constant penetration rate regardless of borehole length. This means faster drilling cycles and more productivity per rig hour.
The DHD 350 excels in tough geologies where other tools struggle. Whether you’re drilling through quartz sandstone, basalt, limestone, or iron ore, this toolset helps you complete jobs faster with greater confidence.
Available in multiple sizes and shank types (e.g., COP, QL, SD series), the DHD 350 drilling tools fit a variety of drilling rigs and job requirements. This flexibility ensures that operators can easily integrate them into existing fleets with minimal hassle.
The efficient transfer of impact energy and reduced air consumption — especially in high-pressure configurations — help lower overall drilling costs and improve return on investment for large-scale projects.
Crafted with high-grade steel, premium tungsten carbide inserts, and carried out with meticulous heat treatment processes, the DHD 350 components are built to resist wear in abrasive environments, offering longer service life and lower maintenance needs.
For open-pit and underground mining, drilling operations demand tools that can handle tough rock and provide consistent hole quality for blasting. The DHD 350 delivers precise penetration and high productivity — reducing downtime and improving blasting results.
Deep water wells require powerful and reliable drilling tools. The DHD 350 series is widely adopted by water well contractors due to its ability to handle various soil and rock conditions while maintaining steady drilling rates.
In infrastructure projects such as foundation work, geo-exploration, and anchoring, accurate drilling and production throughput are essential. The DHD 350 tools provide the strength and drilling stability needed to support heavy construction demands.
Selecting the correct DTH hammer and bit combination is crucial for maximizing efficiency and reducing costs. Consider the following:
The DHD 350 product range offers multiple configurations tailored to specific drilling needs, ensuring operators get the best match for their rigs and environments.
Contact Us at Any Time