Top Hammer Extension Rod

Top hammer extension rod: For extension rod, there are two shapes, one is round type, another one is hexagonal type. All extension rod are threaded and made by hollow drill steels. This hollow hole are usually named flushing hole, used for transmitting water or air during drilling. Two ends...

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Top hammer extension rod:

For extension rod, there are two shapes, one is round type, another one is hexagonal type. All extension rod are threaded and made by hollow drill steels.

This hollow hole are usually named flushing hole, used for transmitting water or air during drilling. Two ends threads can be used for connecting couplings, shanks, couplings or bits. Typically two ends of extension rods are male, while sometime one end is male and another one is female, then we call it M/F rod. We need couplings to connect extension rods, while for M/F rods, because one end is female, so couplings are not necessary.


Description:

Extension rod, other names are Extension drill steel, Extension drill rod, and Extension steel, M/F rod ( Speed rod ) , Produce Hexagonal and round cross sections, Hexagon rods are more rigid, heavier and transfer energy more efficiently, while increasing flushing. Round rods are generally lighter than hexagonal rods and are normally used in extension drilling applications.


Main Products:

1-12 inch middle-low/high air pressure DTH hammers & bits

Big hole high air pressure DTH hammer using in water well, oil, gas and construction drilling

Eccentric overburden drilling Equipment

Hole opener bit

Rock thread bit (R22, R25, R28, R32, R35, R38, T38, T45,T51, ST58,GT60)

Extension Rod, M/F Rod, M/m Rod, Drift Rod,

Shank adapter, coupling sleeves and all kinds of adapters

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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

 

About Us:

1. Our factory has been specialized in manufacturing drilling tools and spare parts for over 10 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.


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