Introducing Powerbit for ST58 and ST68 threads | Epiroc US
https://www.epiroc.com/en-us/newsroom/2017/powerbit-for-st58-and-st68-threads
WEBJul 7, 2017 · Newsroom. Introducing Powerbit for ST58 and ST68 threads. July 7, 2017. In December of 2015, Atlas Copco Secoroc introduced an all-new bit range for tophammer surface drilling – Powerbit. The first thread system to reach the market was T45. Since the introduction, Powerbit T45 and T51 has met, and surpassed all goals and expectations.
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