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Percussion drilling

10 bytes removed, 03:10, 9 November 2012
→‎Reference manuals, videos, and links
Percussion drilling is mainly used in Niger, Nigeria, Chad, Liberia, Ghana, Central America and western countries.
==Reference manualsManuals, videos, and links==
* [http://www.surechem.com.my/download/eijkelkamp/P1/P1-21e.pdf Percussion Drilling]. Different kinds of drills and connectors.
* [http://www.wellspringafrica.org/manual.asp Drilling Wells by Hand], Cliff Missen, Wellspring Africa, draft 4 - Manual on Percussion drilling, well construction, manufacturing tools. [http://www.wellspringafrica.org/drildesc.htm Website of WellspringAfrica]
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