Down-the-hole Drilling Tools

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Our 1”–2” middle air pressure DTH bits are specifically engineered for high-precision underground drilling and core sampling. Powered by compressed air, these bits combine high-frequency impact with steady rotation to penetrate hard rock formations efficiently. Designed for durability and accuracy, our DTH bits feature advanced cutting structures that ensure clean rock fragmentation and reliable sample collection. Whether for geological exploration, mineral surveys, or site investigations, our bits provide the stability and performance needed to deliver high-quality geological data while reducing operational costs.

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3 Inch High Air Pressure DTH Bits

Our 3-inch high-pressure DTH bits combine a compact, lightweight design with superior impact resistance, making them the perfect solution for confined and challenging environments. Engineered to work with high-pressure air systems, these bits deliver exceptional penetration rates and maximum drilling efficiency. Built with premium-grade tungsten carbide buttons, our bits ensure long service life and stable performance in hard rock formations. Whether for mining, water well drilling, or civil engineering, choose our 3-inch bits to achieve faster cycles and lower your total operational costs.

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3 Inch Middle Air Pressure DTH Bits

Engineered from high-strength alloy steel, our 3-inch middle air pressure DTH bits offer the perfect balance of performance and durability. Featuring superior wear resistance and precision-hardened surfaces, these bits are built to extend service life and minimize replacement costs. We offer flexible customization to match your specific geological conditions, ensuring optimal penetration in various rock formations. Whether for groundwater extraction or small-scale mining, our 3-inch bits provide the reliability and adaptability you need to get the job done efficiently and economically.

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DTH Drilling Pipe O.D.76mm (No Flat) for Mining

Down-the-hole drilling pipes are used for connecting DTH hammers and drilling bits. Manufactured from seamless steel tubing, they are the key accessories for all types of DTH drilling operation and play a critical role in operation.

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DTH Drilling Pipe O.D.76mm for Water Well

The down-the-hole drilling pipe is manufactured from quality materials, with heat treatment performed in an integrated multi-functional furnace. All threads are machined with specialized CNC equipment.

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DTH Drilling Pipe O.D.89mm (No Flat) for Mining

DTH drilling pipes are used for connecting DTH hammers and drilling bits. Manufactured from seamless steel tubing, they are the key accessories for all types of DTH drilling operations, playing a critical role in operation.

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DTH Drilling Pipe O.D.89mm for Water Well

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Box-Box Adapter For DTH Rig Drilling Pipe

Our Box-Box (Female-to-Female) adapters are essential components for connecting DTH hammers and drill rods. Engineered to ensure a perfect fit, these adapters act as a protective link, significantly reducing thread wear on your drill rods and extending the service life of your entire drilling string. Manufactured from premium-grade alloy steel, our adapters provide superior durability and precise alignment under high-impact conditions. Ideal for water well drilling, mining, and construction, they offer a reliable and cost-effective solution to keep your rigs running longer with minimal maintenance.

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Pin-Box Adapter For DTH Rig Drilling Pipe

Our Pin-Box (Male-to-Female) adapters provide a reliable connection between DTH rods and hammers of varying thread sizes. By serving as a precision interface, these adapters effectively absorb operational wear, protecting your drill rods' threads and significantly extending their working life. Crafted from high-grade alloy steel with precision-machined threads, our adapters ensure a leak-proof seal and maximum energy transfer. Whether for water well, mining, or quarrying operations, our adapters offer the versatility and durability required to keep your drilling projects running smoothly and cost-effectively.

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Industries We Serve

Application

With 20 years of experience in rock drilling, we provide high-quality mining equipment and professional solutions worldwide. Our strong supply chain ensures reliable performance for every project. We are committed to helping our customers improve efficiency and solve technical challenges in any environment.

Mining

We provide reliable drilling machines and parts for large mining projects to help you work faster.

Quarrying & Aggregate

Our top-hammer rigs are built for high productivity in quarries and tough stone production.

Tunneling

We offer precise and safe drilling equipment for complex tunnel construction and underground work.

We are dedicated to building a better future with you through meticulous and professional service!

Get in Touch

+86 130 4106 7108
info@hclhkj.com