Numa has built a legacy of high quality, Made in the USA rock drilling hammers and bits for DTH, HDD, and reverse circulation holes 3½ to 50½ inches (89 - 1283 mm) in diameter. Our history of innov...
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Unmatched in its service to the industry, STAR IRON WORKS, INC. manufactures and supplies a comprehensive array of drilling products. Star Iron Works has knowledgeable sales staff that works closel...
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