"The Stone-hammer is slow but does not give us the headache of the cost and maintenance of motorized drilling rigs". A. Fajardo, Director of the Nicaraguan NGO Cesade .
==Reference manualsManuals, videos, and links==
* [http://www.practicafoundation.nl/wp-content/uploads/PDF/Practica%20drilling%20Rs%20versie%201th%20september%2005.pdf Rota-sludge and Stone Hammer drilling, part one: Drilling Manual] by Practica Foundation.
* [http://www.practicafoundation.nl/wp-content/uploads/PDF/practica-production-rs-versie-1th-september-051.pdf Rota-sludge and Stone Hammer drilling, part two: Production Manual] by Practica Foundation.
* [http://www.practicafoundation.nl/products/drilling-wells/ Stone hammer info on www.practicafoundation.nl]
* [http://www.rural-water-supply.net/en/implementation/manual-drilling manual Hand Drilling Techniques.] Rural Water Supply Network. An analysis and comparison of all the drilling techniques, including 3 in-depth manuals of comparisons.
== Acknowledgements==
* The basis for the material on this page was obtained from a desk study shortly to be published on the website of the [http://www.practicafoundation.nl/ Practica Foundation], and from the [http://www.rural-water-supply.net/ Rural Water Supply Network], and specifically its [http://www.rural-water-supply.net/en/implementation/manual-drilling manual drilling section].
* [http://www.lboro.ac.uk/well/resources/technical-briefs/43-simple-drilling-methods.pdf 43. Simple drilling methods.] WEDC.
