Rock drill bit BR3 90mm 3.5\

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Price:$89.81 - $96.37
Price in USD:Details


Product Overview


Product Description

BR3-90mm DTH Hammer Bit 3 inches middle air pressure DTH hammer drill bi Dth Hammer Bits for mine drilling machines

Product Name
BR3-90mm drill bit
Carbon steel
Button quantity
Place of Product
Hunan Province,China
Button shape
Golden or As your request
Button Anglle
After sale service
24 hourse service

Detailed Images

DTH drill bits
1. Customized acceptable
2. Bit diameter, face shape
3. Carbide button shape
4. qty of air hole

Product Show

Product features

1. Ingenious Design, High Penetration Rate and Long Service Life.
2. Different product features match different rock formations.
3. High grade steel and advanced heat treatment offer Superior Wear Resistance.
4. Easy for Operation and Cost Effectiveness.

Main button bits diameters:
We need to confirm the following Product
Specification before placing an order:
1. The type of drill bit;
2. The head diameter of drill bit;
3. Bit face shape Choice: (Main shapes are:
Drop Center, Concave Face, Convex Face,
Double Gauge Face, Flat Face)
4. Shape of alloy teeth. (Main tooth shape:
Domed/Round Button, Parabolic/Semi-
Ballistic Buttons, Ballistic button,
Sharp button, Flat button)


Where To Use
All our products are widely used in mining, tunneling, quarrying, construction, and civil engineering project.

Related Products


Patent Certificate
      Quality  Certificate 
       Certificate Of Conformity


Using ply-wooden cases and pallet for package to protect the products and avoid the damaging during transportation. Also we can customize package according to your special requests.

Company Introduction

Changsha DTH Drill Construction Machinery Co., Ltd has more than 20 years of drilling tools industry since 1996. Its predecessor was the designated processing workplace of down-the-hole drilling tools of Changsha Institute of Mining Research. It is the Institute of Metal Research of the Chinese Academy of Sciences, the National Institute of Materials Research (NIMS) of Japan, and the partner of University of Queensland, Australia, the Swiss Federal Institute of Technology (EMPA).

Our Services & Strength
Focus on DTH drilling tools 20+ years, Efficient and Long life.


1. Are you exact manufacturer or just trading company?
We are both,we have our own factory. And also have many long-relationship factories.

2.What is your minimum order quantity?
Our MOQ are 1pc or 1 complete set, the price may rely on the order quantity.
We are welcome your sample order to testing our quality。

3. Can you accept OEM & ODM?
Yes, both of them are acceptable,.Please tell us your requirements or design drawings kindly.
As we have our own R&D team and the team leader is Dr.Zhao mingchun who has been always
in the material research and drawing design of drilling tools for 25 years.And he had designed
the world’s biggest top hammer bit and DTH hammer bit, highly praised by the users.

4. How about Packing
Using ply-wooden cases and pallet for exporting to protect products and avoid the damagement during transportation.
Also, we can customize package according to your special requests.

5. How about the delivery time?
It depends, generally it takes about 15-25day. If have stocks, Usually only 5-10 days if in stock.

6. Can I have a visit to your factory before the order?
Sure, welcome, kindly contact us for address details and time schedule.

2.0662 s.