Hydra-Drill FAQs
2013-4-29u2002·u2002The Hydra-Drill is a small top-head rotary drilling rig powered by a 4, 5.5 or 6HP gasoline power head and a 5HP gasoline re-circulating pump ( mud pump ). The Hydra-Drill uses the method of drilling referred to as 'mud rotary' drilling. The power head engine turns the drill stem which has a drill bit screwed onto the end.
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