China New Hot Selling DTH Hole tungsten carbide Drilling Bit shanks

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10 Pieces
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Company Information

Changsha Great Wall Drilling Tools Manufacturing Co., Ltd.

CN Manufacturer
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Quick Details

Port: Shenzhen
Payment Terms: L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability: 10000 Piece/Pieces per Month DTH Bit
Place of Origin: Hunan China
Brand Name: Pro-Power Drill
Model Number: DHD 360-165
Type: Drill Bit
Machine Type: Drilling Tool
Material: Nickel-alloy steel
Processing Type: Forging
Use: Mining or marble quarry
diameter(mm): 152+
Face design: Concave/ Flat/ Convex/ Drop
Button shape: Spherical/Ballistic/Wedged/Semi-ballistic
Color: Yellow/ Red/ Black/ Gray
Sample: YES
Delivery Detail: Shipped in 20 days after payment
Packaging Detail: Ply-wooden cases + pallet

China New Hot Selling DTH Hole Drilling Bit

Product Description


     DTH bit is our main product. After many years search, we have rich experience in development and manufacturing high quality DTH Bits, which adopted high-quality raw materials, advanced technology and passed through strictly inspection.


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 dth bit


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How to Select DTH Bits Face shape and Carbide Button Shape


A:Bits face shape selection


Drop Center

For high penetration rates in soft to medium-hard and fissured rock formations.

Concave Face

The all-round application bit face specifically for medium hard and homogeneous rock formation. Good hole deviation control and good flushing capacity.

Convex Face

For high penetration rates in soft to medium-hard with low to medium air pressure. It is the most resistance to steel wash, and good resistance to steel wash step gauge bit.

Flat Face

This kind of face shape is suitable for hard to very hard and abrasive rock formations in applications with high air pressures. Good penetration rates an resistance to steel wash.



B:Insert Carbide Button shape Selection

Different button is ideal for different ground conditions, abrasive levels, PSIs and penetration levels. In general, the more of gauge buttons, the better over performance, especially in hard rock.



  • Application Strength-multipurpose
  • Best suited to soft abrasive
  • 25,000 to 45,000 PSI (170 to 300 MPa)
  • Abrasive to very abrasive

Ballistic Button

  • Application Strength- fast penetration
  • Best suited to soft ground
  • 10,000to 20,000 PSI(70 to 140 MPa)
  • Non abrasive ground


  • Application Strength-fast penetration
  • Best suited to medium ground
  • 15,000 to 25,000 PSI(100 to 170 MPs)
  • Mildly abrasive ground

Wedged (Conical) Button

  • Application Strength- fast penetration
  • Suited for all non-abrasive ground types
  • Smaller contact area
  • Best suited for smaller diameter bits


 Features of Nickel-alloy steel drill bits:

  • High rock drilling efficiency, stable property
  • Stron wear resistance, long service life, great cost-saving.
  • Simple structure for easy use and maintenance
  • Durable, high-hardness, high density.
  • Fast drilling speed, no need grinding.






    Our DTH bits are widely used for produce large-diameter holes in rocks for water-well drilling, tunnels, mineral exploration, geothermal drilling, subway engineering drilling. quarrying and roads, power stations, and other construction projects. it is suitable for very hard and abrasive rock formation, medium-hard and homogeneous formation. soft rock and fissured rock formations etc. 


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Related Peoducts


    Our factory also can supply you with high pressure and medium to low pressure DTH hammers. It strictly matches with API standard and other Chinese industry standards. It is durable for being produced with advanced craftwork and good material.


dth bit


dth bit


DescriptionThread ConnectionOutside Dia.(mm)Length Without Bit(mm)Weight(KG) Rec. Hole SizeWorking Pressure(Bar)Air Consumption
HDH 360

3 1/2"REG









 Design Principles and Advantages of our DTH hammer 

  • According to the newest rock drilling theory to design our DTH hammer for deliver maximum energy to drilling bit and ensure high drilling rate.
  • High quality alloy steel materials and advanced processing technology ensure smooth operation ,reliability and longer service life.
  • The simple structure of our DTH hammer ensure low problem rate and easy operation &maintenance.
  • The drilling speed is 15%-30% higher than other brands.



Company Information


dth bit


 Changsha ChangCheng Drilling Tools Co., Ltd. established in 2001. Our company has more than 10000M² modern workshop, many kinds of CNC machines, precision grinding machines, heat treatment equipment and quality testing equipments. With more than 10 years of operation and development of this company, this company has got many technical experiences. These improve the quality and the technical content of our product and innovate our product constantly. Our products can perfectly match with the products of the world famous brand such as: Atlas Copco, Sandvik, Ingersoll-Rand and other well-know manufactures.


Our Services

 Customer List

dth bit


 According to different drilling requirements in different rock formations, we have special designs for you with good quality and price. Just tell us what you need and we will handle it as soon as possible.

    Products with any problem caused by unqualified material or process will be replaced with providing photos of broken parts.

    Catalogs can easily be found and downloaded on our website. Or, please feel free to contact us for any questions!


Packaging & Shipping



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

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    Delivery Time: shipped in 20 days after payment.

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 dth bit


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