The efficient spiral drill rod is specially designed for water and gas exploring and extract for underground coal mine. It adopts square connection so it is convenient to assemble and disassemble, made by high quality steel, after forging and heat treatment, its tension-resistance can be up to 1323.89MPa.

It can be used with our drilling rigs which adopts spiral dry techniques so that it is faster in drilling, and the holes remain good shape.

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