Down-the-Hole Drilling Tools for Mining & Construction

Rock Drilling Tools

DTH Drilling Tools (2" to 20")

Down-the-hole drilling tools

All required DTH drilling tools can be sourced in one place, including adapters, drill rods, DTH hammers, DTH bits, and related accessories. One-stop procurement is supported, with optional customized configurations and made-to-order manufacturing based on specific project requirements.

Typical DTH Drilling Tool Configuration

DTH Drilling String Components

DTH Drill Pipes

Pipe diameter: 3"-7"
Length: 1-12m
Joint material: 42CrMo alloy steel

DTH Hammers

Hammer size: 2"-10"
Compatible bit diameter: 60-400 mm
Thread connection: API REG

DTH Drill Bits

Bit diameter range: 60-400mm
Bit face designs: Flat face bit, convex face bit, concave face bit, double-row button bit, center-drop face bit

DTH Connection Adapters

Complete thread range covers all major API-standard threads, including REG and NC series, ensuring broad compatibility with common drilling tools.

Need help finding the right product? Explore the applications serviced by us.

Geological exploration Mineral resource exploration, sampling and analysis

Drilling Water wells, geothermal wells, oil wells, coalbed methane, shale gas

Mining Open-pit blast holes, production drilling, underground mining

Foundation construction Bridges, high-rise buildings, port and harbor piling foundations

One-Stop Rock Drilling Solutions for Your Projects

We offer a complete range of drilling tools, drill rigs and related equipment for various projects, including mining, construction, water well drilling and more.

Rock Drilling Tools A complete range of rock drilling tools designed for mining, drilling, and construction projects. The portfolio includes DTH, top hammer, reverse circulation, casing systems, drill rods, and couplings, supporting one-stop equipment matching and reliable performance in complex conditions.

Drill RigsComprehensive mining equipment covering surface drill rigs and underground drill rigs for mining, tunneling and construction. Designed for high efficiency, safety and adaptability across diverse geological conditions and mining environments.

Air CompressorsAir compressors designed for drilling, mining, and construction applications. Including portable diesel compressors, portable electric compressors, and stationary electric screw compressors, providing stable, efficient, and reliable air supply for various working conditions.

How do DTH drilling tools perform in complex formations such as urban metro projects and bridge piling foundations?

Our full range of DTH drilling tools features high-strength alloy buttons and optimized air-flow channel designs. They are suitable for a wide range of formations, including sand, gravel, cobble layers, and hard rock, delivering stable penetration rates and reliable wear resistance. These tools are widely applied in foundation piling, urban infrastructure, and tunneling projects with complex geological conditions.

For open-pit mining in granite or basalt, which is more cost-effective: top hammer or DTH drilling? What are the key selection factors?

For hard rock mining applications such as granite and basalt, DTH drilling systems are generally recommended for hole diameters of 90-152mm, offering higher rock-breaking efficiency and faster penetration rates. Top hammer systems are typically more suitable for medium-hard formations and hole diameters up to 102mm. Key selection factors include rock hardness, hole diameter, bench height, and blasting design requirements.

Do you offer application-specific DTH bits and hammers for different scenarios?

Yes. We offer application-specific DTH bit and hammer solutions for scenarios such as retaining wall foundations, urban road construction, and bridge projects.

Available options include:

Button types: spherical buttons, ballistic buttons
Bit face designs: flat face, concave face, convex face

Special wear-resistant coatings

These configurations allow the tools to be matched to specific formation conditions, helping achieve reliable drilling performance and extended service life.