Cat drill customer Iron Mountain Quarry in Missouri, US, has reported a boost in performance with its new Cat MD5150C top-hammer drill. According to the company, even in granite-like conditions, the drill is out-performing down-the-hole rigs, with overall productivity almost double a competitor's DTH drill. This productivity is achieved with the Cat HPR6832 hydraulic rock drill, the new carousel rod changer and the Cat C11 Engine.
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