the thread at the end of the Drifter rod we have R32 R38 T38 T45 etc , the body of the Drifter rod have HEX 32mm HEX 35mm . the length of the dril rod from 1.5m-6m , Drifter rods are made by hollow drill steels; there are two shapes of Drifter drill rods, round type and hexagonal type. This hollow hole are usually named flushing hole, used for transmitting water or air during drilling，And the threads can be used for connecting couplings, shanks, couplings or bits.Usually for Drifter rods, there are R22, R25, R28, R32, R38, T38, T45 ,T51,ST58, T60 threads, and different lengths of rods are available from 600mm to 6400mm usually.
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