a variety of diamiond drill rod best-selling in china

 diamond drill rod

Description of Drill Rods:

In order to meet different drilling applications in mining, quarrying as well as energy exploration, we usually need different lengths of drill stems, so coupling sleeves are needed to connect extension rods. There are two types of couplings: semi-bridge couplings and full bridge couplings. The only difference between them is that the former have a middle stop at the middle of couplings. Generally, two ends of couplings are the same, like R25, R32, R38, T45, T51, etc. But sometimes, crossover couplings are needed, for example, one end is R32 and the other end is R38, but basically all couplings are female threads.

 drill rod

 The products has two kinds of dry-type and wet-type, which has specifications of diameter 26mm, 28mm, 30mm, 38mm, 40mm, etc...As the manufacturer of coal drill rod we can supply you with all of your drilling needs. They are used for electric coal drill anchor bar, which is ideal and necessary tools for coal mine exploitation and shoring. 

This product has two kinds: Solid and hollow, the specification is: 26, 28, 30, 38, 40 etc. 
It is suitable for electric drill boring, is the ideal tool for coal mine. 

size available: 
"W"Series: RW, EW, AW, BW, NW, HW 
"WJ"Series: AWJ, BWJ, NWJ, KWJ, HWJ 
Metric Series: 33, 42, 50

Non standard also can be made as your need.

More Product Features

1, light weight (lighter than the old-fashioned drill pipe 45%)

2, footage soon, dust small vertical holes left after drilling cuttings, into a hole clear.

3, card beans quickly and easily connect and save banding material.

4, under separation of body and drilling may be the end, the use of life extended.

5, water-based wet good pass operation

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