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[[Image:Treadle_pump_icon.png|right]]
[[Image:Stone_hammer_well_drilling.PNG|thumb|right|150px|The Stone-hammer in India, drilling a 20 m deep well in a stony layer ]]
[[Image:Stone hammer drilling in action.jpg|thumb|right|150px|Stone hammer drilling in action]]
[[Image:Emptying the drill bit.jpg|thumb|right|150px|Emptying the drill bit]]
