5" High Air Pressure Button Drill Bit , HD45A-127mm Small Well Mining Drill Bits

5" High air pressure button bits HD45A-127mm using on small well drilling or mining.

DHD340-130 series of drill bits are reliable in structure and widely used.
It is one of the most commonly used high pressure drill bit in the market at present.

HD45A series the same with COP44, DHD340,QD45A DTH series,They are structurally universal.

Both of them have two type:

1. Bit without nylon tube: the Bit without nylon tube and the impactor used are more efficient, simpler structure and lower energy consumption.But there are requirements for the operator's proficiency.Product prices are more economical.

2. Bit with nylon tube: the bit with nylon tube and the impactor used in this product has the feature that sediment is not easy to be inverted, which is more convenient to use. However, Hammer's structure is more complicated and the manufacturing cost is higher.

We have produced all seires dth hammer and bits ; like the copseries , mission series 

Advantages:
Compared with the oversea brands, our advantages are bellowing:
a. Our products can match over 95% against the original products
b. Price are competitive against the famous brands and best quality against the small factory

Product picture:

About Us:
1. Our factory has been specialized in manufacturing drilling tools and spare parts for over 20 years.
2. We have advanced technology and equipment.
3. Our technician has more than 13 year's professional working experience.
4. Rock drilling tools are exported throughout the world. Main market: Norway, Turkey, USA, Canada, Australia, Brazil, Uruguay, Iran, Philippines, Thailand, India, etc.