DTH Drilling Tools | High-Performance DTH Hammers & Bits for Hard Rock Drilling
What is DTH (Down-The-Hole) Drilling?
DTH drilling is a high-efficiency percussion drilling system. Compressed air drives a piston inside the hammer body, creating powerful repeated impact energy that is transmitted directly to the drill bit. The bit crushes the rock efficiently while maintaining excellent hole straightness.
Faster Penetration
In hard rock formations
Superior Straightness
Excellent hole quality
Lower Total Cost
Reduced energy loss & maintenance
DTH drilling is widely used in foundation engineering, quarrying, mining, water well drilling, marine construction, and slope stabilization projects.
Why Choose Our DTH Hammers and Bits?
As a professional manufacturer of DTH drilling tools, we supply high-performance DTH hammers and bits designed for maximum efficiency and durability.
Precision-Engineered Internal Structure
Optimized hammer design for maximum impact energy transfer
Intensive Impact Energy
Minimal energy loss for faster penetration rates
High Rock-Breaking Efficiency
Superior performance in hard rock formations
Excellent Hole Quality
Superior straightness and smooth boreholes
Long Service Life
Wear-resistant materials and precision manufacturing
Low Maintenance Cost
Robust design reduces downtime and repair frequency
Compatible with Major International Shank Systems
DHD, COP, QL, SD, MACH, BR, NUMA and others
Our DTH tools are trusted by drill & blast engineers, mining contractors, and water well drilling companies worldwide.
DTH Drill Bits Specifications
We supply a complete range of DTH bits from 1″ to 12″ and customized large diameters up to 30″.
| Hammer Size | Bit Diameter (Metric) | Bit Diameter (Inch) | Compatible Shank |
|---|---|---|---|
| 1″ | 64–70 mm | 2 1/2″–2 3/4″ | BR1 |
| 2″ | 70–95 mm | 2 3/4″–3 3/4″ | MACH20 / BR2 |
| 3″ | 90–102 mm | 3 1/2″–4″ | COP32 / COP34 / M30 / DHD3.5 / BR3 |
| 4″ | 105–152 mm | 4 1/8″–6″ | COP44 / DHD340 / SD4 / QL40 / M40 |
| 5″ | 133–165 mm | 5 1/4″–6 1/2″ | COP54 / DHD350R / SD5 / QL50 / M50 / BR5 |
| 6″ | 152–254 mm | 4 1/8″–10″ | COP64 / DHD360 / SD6 / QL60 / M60 / BR6 |
| 8″ | 203–330 mm | 8″–13″ | COP84 / DHD380 / SD8 / QL80 / M80 |
| 10″ | 254–380 mm | 10″–15″ | SD10 / NUMA100 |
| 12″ | 305–508 mm | 12″–20″ | DHD1120 / SD12 / NUMA120 / NUMA125 |
DTH Hammer Technical Specifications
We manufacture middle, low, and high-pressure DTH hammers from 1″ to 12″.
1–3″ Middle & Low Pressure DTH Hammers
4″ DTH Hammers
5″ DTH Hammers
6″ DTH Hammers
8″ DTH Hammers
10″ DTH Hammers
12″ DTH Hammers
Applications of Our DTH Drilling Tools
Custom DTH Solutions Available
Our engineering team can recommend the most suitable hammer and bit configuration according to your project conditions.
Frequently Asked Questions
What working pressure do your DTH hammers support?
Our hammers support 0.7–2.5 Mpa depending on model and size.
Are your products compatible with international brands?
Yes. Our DTH bits and hammers are compatible with major shank types such as DHD, COP, QL, SD, MACH, BR, NUMA, and others.
What is your delivery time?
Standard models are typically available within 7–15 working days.
Do you provide samples?
Yes, sample orders are available for quality evaluation.
Our Manufacturing Excellence
From precision machining to final assembly — every DTH tool is crafted in our ISO 9001 certified facility.
Explore Our Full Range of Drilling Tools
From surface to downhole, we offer a complete lineup of high-performance drill bits and accessories engineered for every formation and application.
PDC Non-Coring Drill Bit
Fast penetration in soft to medium formations without core recovery.
PDC Exploration Core Drill Bit
High core recovery and durability in exploration drilling.
Hot-Pressed Diamond Drill Bit
Ideal for very hard and abrasive rock formations.
Electroplated Diamond Drill Bit
Excellent for non-ferrous materials and precision drilling.
Tricone Rock Drill Bit
Rolling cone bits for a wide range of formations.
Alloy Scraper Drill Bit
Effective in soft and sticky formations.
Pick Cutter Bit
Heavy-duty cutting for mining and trenching.
DTH Hammer
High-frequency impact for deep hole drilling.
Custom Drill Bit
Tailor-made solutions for your specific project.
Drilling Rigs and Accessories
Complete drilling systems and support equipment.
Click any product to learn more and request a quote.
