4 inch rock stone dth drill bit for sale

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4 inch  rock stone drill bit for sale


What are the key factors when you purchase the drilling tools? 

Product's technical parameter? Quality?  The price? Professional service? Company strength? Delivery items?  After-sales service?  

1. About the technical parameter:


Specification:Diameter: (mm)Weight: (kg)
Low air pressure DTH bits CIR type68 ~ 2002.6 ~ 48
Middle air pressure BR & COP type76 ~ 1103.8 ~ 15
3 inch high Air pressure DTH bits(COP32/BR3/HD35/IR3.5/COP34/QL30)85 / 90 / 95 / 100 / 1054.2 ~ 5.5
4 inch high Air pressure DTH bits(HD45/DHD340A/COP44/SD4/QL40/HM4)105 / 110 / 115 / 120 / 1279 ~ 12
5 inch high Air pressure DTH bits(HD55/DHD350R/COP54/SD5/QL50/HM5)133 / 140 / 146 / 152 / 16515 ~ 18.5
6 inch high Air pressure DTH bits(HD65/DHD360/COP64/SD6/QL60/HM6)152 / 165 / 178 / 190 / 20326 ~ 36
8 inch high Air pressure DTH bits(HD85/DHD380/COP84/SD8/QL80/HM8)195 / 203 / 216 / 254 / 30533 ~ 95

Product Description

Product Description

Products Parameters:


1.high and low air pressure down-the-hole drill bits


2.Low air pressure holeDia.:65-220mm 


3.High air pressure hole Dia.:85-305mm


4.Face type: drop center bit/concave face/convex face/double gauge face/flat face bit


5. Carbide button shape: domed/round button parabolic/semi-ballistic button ballistic button sharp button flat button


6. Drill rock type:  Granite, Marble,  Limestone, Basalt, ect.


7. Project types: Blast holes, Quarry , Anchoring, Infrastructure, Geothermal holes, Well drilling,ect.

1Quality95% quality similarity with world top class brands,such as atlas ingersoll rand etc.
2Shank TypeOur products can be suitable for many types of DTH Hammer, such as QL, Mission, COP, IR, SD,HD,DHD,BR,CIR etc.
3MaterialsOur products adopt high-quality raw materialsadvanced technology and passed through strictly inspection, making sure the high quality of every dth bits
4AdvantagesOur dth bits can transmit intensive impact energy into the rock with the least loss of energy, which can help you improve efficiency and reduce costs
5Product lifeWe select high-strength structure alloy steel and carbides with best quality to ensure the drill body and alloy body can achieve uniform wear, thus the service life of bits will be increased.


2. About the quality:


Our DTH Bits has following advantages:


1.  95% quality similarity with world top class brands,such as atlas Copco etc.

2. Strong ability in drilling tools production.

3.Strick quality control.


Factory And Price

Factory Description And price

Advanced equipment

Professional technicians

Strict production process

3. About the price:

    No middle channel ,

    Direct selling

    Cheap and competitive factory price.


Professional service

Professional service

4. About the  Professional service:

Since our company has been established in 1996, we have served a number of large mining projects including blast holes, anchoring geothermal bore holes, quarring, well drilling and accumulated a wealth of practical experience.And Our DTH bit can be used in different types of drilling machine:


Company Information

Company Introduction

5. About the Company strength:

Xiamen Zhao Xing Electrical Equipment Co., Ltd. was established in 1996, with extensive experience in drilling area. We specializes in providing drilling solutions for our customers to improve efficiency and cost savings.


ZHAOXING is worth of your choice!


Passion and professinal team


We have cultivated a contingent of well-trained,experienced maintenance engineers,s-


trong service team, in order to provide a guarantee of normal production;


we have accumulated a number of outstanding drilling rigs and drilling tools


suppliers, we are familiar with drilling products market, we are here to


provide low-cost, high-efficiency drilling services solution capacity.



After-Sales Service

6.About the after-sales service and delivery items.

Ecellent professional after-sales service

customer visit 

Packaging And FAQ

Packaging & Shipping


The information about dth drill bit you may like to know before order:

1. Methods of Payment:

  T/T (Telegraphic Transfer) or Western Union or L/C at sight

2. Handling time for an order

  Based on order quantity, normally it takes 20 days for production.

   in 3 working days after receiving the advance payment

3. Shipping way

  Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air

  Bulk order: we suggest by air or by sea.

4. Quality Control

  We have our own experienced QC.

  There will be strict inspection and testing for every order before shipping out.

5. After Services:

  a. Our sales team will response for your question within 24 hours (Holidays Excluded)

  b. Technical Support will be available in any time