CIR70 low and medium wind pressure down-the-hole drill bit

CIR series low and medium wind pressure down-the-hole drill bits

CIR70 drill product introduction

CIR70 bit has good stability, long service life, high drilling efficiency, low pressure and medium speed drilling, good gauge protection effect, wide range of use, etc. It can be widely used in construction work such as geological exploration, coal mining, water conservancy and hydropower construction, etc. .


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Advantages of CIR70 low and medium wind pressure DTH drill bit

Long bit life

The drill bit is made of alloy steel. The wear ratio of cemented carbide is more than 10-20 times that of similar products. Its service life is longer and higher than similar products.

High drilling efficiency

The drill bit is made of cemented carbide, which has high hardness and wear resistance, and the drill bit can always remain sharp, thus greatly improving the speed of the tooth.

Wide range of use

Practice has proved that the drill bit is suitable for drilling in soft and medium-hard (rock formations with drillability below grade 9). Compared with ordinary drill bits, especially for drilling rocks of grade 6-8, the effect is particularly significant.

Cost-effective

This low- and medium-pressure down-the-hole drill bit has fast drilling speed and long life, so the number of drilling times is small, the drilling cost is greatly reduced, and it has an excellent cost performance.

Technical parameters of CIR70 down-the-hole drill bit


This low- and medium-pressure down-the-hole drill bit is the best drill bit product in China. We have exported this bit to many countries and the feedback is very good. You are welcome to contact us if you need it. We can provide all series of drill bits and drilling tools.

Contact us

  • +89-138 8919 6063
  • noreply@gmail.com
  • liaoning shenyang
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