DTH Rock Drilling Equipment | Patriot ... - Numa Hammers
DTH and HDD Drilling Products for a Wide Range of Applications . Numa is the world’s leading drilling technology provider, dedicated to ongoing product innovation and results-oriented consistency. For 35 years, we’ve built a strong legacy of high quality, made in the USA rock drilling hammers and bits for vertical, horizontal, and reverse circulation holes 3½ to 50½ inches (89 – …
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