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Percussion - Stone hammer

346 bytes added, 23:47, 23 October 2015
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{{Language-box|english_link= Percussion - Stone hammer | french_link= Coming soon | spanish_link= Coming soon | hindi_link= Coming soon | malayalam_link= Coming soon | tamil_link= Coming soon | korean_link= Coming soon | chinese_link=冲击钻井 — 石锤法 | indonesian_link= Coming soon | japanese_link= Coming soon }}
[[Image:icon_stonehammer.png|right|80px]]
[[Image:Stone_hammer drilling.jpg|thumb|right|200px|The Stone-hammer in India, drilling a 20 m deep well in a stony layer. Photo: Netherlands Water Partnership.]]
- Stone hammer wells are much simpler, less maintenance problems (No “high-tech” parts like carburetor, gearbox etc.) compared to machine drilled wells.<br>
| valign="top" | - It is difficult to remove the drill bit after it has been hammered into the formation. <br>
- The stone hammer is only successful when larger boulders are not encountered. Smaller ones are okay. <br>
- It is slower than machine drilled wells.
|}
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