T38 coupling for T38 thread button bits - Knowledge -
2018-8-22 · Coupling is used for connect drill rods. Function is to transfer the impact energy and reduce the drill rods energy lose. Tydrillbits is one of the rock drilling tools manufacturer and exporter in China. We can supply standard size coupling. This is our T38 coupling, it is wear-resistant and high impact toughess. It connects T38 drill rods togethere.
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