Cemented Carbide Steel Tapered Button Bits High Drilling Efficiency Long Life Span

Basic Information
Place of Origin: Hunan, China (Mainland)
Brand Name: New Diamond
Certification: ISO9001:2008
Model Number: COP66
Minimum Order Quantity: Negotiable
Price: Negotiable
Packaging Details: Carton packaging and wooden box packing
Delivery Time: 5-8 work days
Payment Terms: Western Union, T/T, L/C
Supply Ability: According to order quantity
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Detail Information
Diameter (mm): 171mm No Head Length(mm): 225mm
Number Of Vents: 4 Head Shape: Flat Face Bit/Concave Face/Convex Face
Material: Alloy Steel Spline Key Number: 12

Product Description

COP66 convex 171mm cemented carbide steel DTH Drill Bits



    1. Long life span: the wear-resist of tungsten carbides is 10-20 times higher compared with other similar materials, which greatly extends the life of the carbide bits;
    2. High drilling efficiency: the high grade hardness of the carbides can always stay sharp, which could increase the drilling speeds too;
  3. New Diamond's bits are widely used in different rock formations like carbonate rock,limestone,chalk rock, clay rock,siltstone and sandstone;
    4. It can greatly reduce the drilling cost, because of its high drilling speed and life span, which reduces the times to changes bits in the drilling service.



The alloy steel is very strong and has long service life.


easy operation
Strong torque, head design rich for different geological needs.


Well made
Standard of work size. Reduce wear and tear to screws and extend service life.


Complete specifications
Different sizes and sizes. Meet the needs of different airlines.




COP Head shape



Number of vents NO X button diamter weight (KG)
Toothed Gauge Front
COP66 Convex Face 171 4 Round Button 8XØ19 8XØ19  
We can design and manufacture according to customers requirement of the bit diameter,the NO.of air holes,carbide buttons and the face shape.

Feature Advantage

1- We are a true production manufacturer and are among the best in the industry of rock drilling tools.


2- We really do the high-end quality, low-end price.


3- We have a technical team with a backbone of research and development and a graduate of a professional college. At present, our company has successfully applied for a number of invention patents and practical performance patents.


4- We have an independent quality testing center with complete testing equipment to achieve 100% inspection before shipment.


5-We promise: The raw materials used are 100% high quality raw materials. If it is the quality problem caused by our reasons, we will take 100% responsibility and return the goods.


6- We can order all kinds of non-standard products according to customers' drawings and requirements. Sincerely welcome you to visit our factory for on-site inspection.


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Cemented Carbide Steel Tapered Button Bits High Drilling Efficiency Long Life Span

Contact Details

WhatsApp : 8618692219720