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Performance DTH Hammers and Bits for Mining, Construction & Water Well Drilling

Applications of Our DTH Drilling Tools

Our DTH hammers and bits are widely used in:

✓ Hard rock drilling
✓ Open-pit mining
✓ Quarry operations
✓ Water well drilling
✓ Foundation piling
✓ Anchoring projects
✓ Slope stabilization
✓ Marine civil engineering

Custom DTH Solutions Available

We offer:

✓ OEM & ODM manufacturing
✓ Custom logo marking
✓ Special diameter production
✓ Customized shank systems

Your Success Starts with a Conversation

2 days customize solutions

Factory visiting anytime

Determine the plan

Manufacturing

5-15 days dispatch the goods

After-sales service is online on workdays.

Regular after-sales follow-up

Provide an after-sales solution within 2 working days

Pre-sale service

Sales service

After-sales service

We prioritize your needs and provide end-to-end support throughout your journey — from pre-sale consultation and seamless sales coordination to reliable after-sales service. Your satisfaction is our promise

DTH Drilling Tools | High-Performance DTH Hammers & Bits for Hard Rock Drilling

Precision-Engineered · Intensive Impact Energy · Long Service Life · Compatible with Major Shank Systems

High Rock-Breaking Efficiency Superior Hole Straightness 1″–30″ Bit Range 0.7–2.5 Mpa Working Pressure

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.

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Faster Penetration

In hard rock formations

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Superior Straightness

Excellent hole quality

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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.

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Precision-Engineered Internal Structure

Optimized hammer design for maximum impact energy transfer

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Intensive Impact Energy

Minimal energy loss for faster penetration rates

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High Rock-Breaking Efficiency

Superior performance in hard rock formations

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Excellent Hole Quality

Superior straightness and smooth boreholes

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Long Service Life

Wear-resistant materials and precision manufacturing

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Low Maintenance Cost

Robust design reduces downtime and repair frequency

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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

For 12″–30″ large diameter DTH bits, please contact us for customized solutions. 👉 Send Inquiry for Custom Sizes

DTH Hammer Technical Specifications

We manufacture middle, low, and high-pressure DTH hammers from 1″ to 12″.

1–3″ Middle & Low Pressure DTH Hammers

Shank: BR1 / BR2 / BR3

Connection Thread: RD40 Box / RD50 Box / API 2 3/8″ Reg

Suitable Bit Range: Φ64–Φ110 mm

Working Pressure: 0.7–1.75 Mpa

Air Consumption: 0.7 Mpa – 4.5 m³/min | 1.0 Mpa – 4 m³/min | 1.4 Mpa – 5 m³/min