The design of rock drilling rods is a blend of science and engineering prowess. They are generally hollow, allowing for the circulation of drilling fluids, also known as mud or coolant, which serves multiple purposes. It cools and lubricates the drill bit, removes cuttings, and stabilizes the borehole. The rods' surface finish and thread design significantly influence their performance and service life.
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2025-08-14 06:45
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