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Hand auger - Vonder rig

306 bytes added, 22:49, 19 October 2015
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{{Language-box|english_link= Hand auger - Vonder rig | 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=手钻-三脚架钻井机 | indonesian_link= Coming soon | japanese_link= Coming soon }}
[[Image:drilling icon.png|right|80px]]
[[Image:Vonder rig in action.jpg|thumb|right|200px|Vonder rig in action]]
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The Vonder rig is a [[Hand auger - general|hand auger method]] method that uses a heavy tripod, a winch, and a working table. It has been used extensively in Zimbabwe and distributed widely in sub-Saharan Africa. The cutting tool (auger head) is rotated to cut into the ground, and then withdrawn to remove excavated material. This is repeated until the required depth is reached.
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