http://www.about-cordless-drills.com/anyone-have-any-creative-ways-to-sink-holes-in-hard-rock-without-a-drill-or-explosives/254/ Your Questions, Our Answers Thu, 17 May 2012 07:47:45 +0000 http://wordpress.org/?v=2.2.1 http://www.about-cordless-drills.com/anyone-have-any-creative-ways-to-sink-holes-in-hard-rock-without-a-drill-or-explosives/254/#comment-703 zircalium Wed, 29 Jul 2009 03:42:42 +0000 http://www.about-cordless-drills.com/anyone-have-any-creative-ways-to-sink-holes-in-hard-rock-without-a-drill-or-explosives/254/#comment-703 The drill downwards you want to dissolve it with hydrochloric or sulfuric acid will make messy hole without drill holes in which. The drill downwards you want to dissolve it with hydrochloric or sulfuric acid will make messy hole without drill holes in which.

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