Shaft Drillers International, based in Kalamazoo, MI, is a leading provider of specialized construction solutions and technological innovations on a global scale. Committed to principles of hard work, integrity, and honesty, SDI companies offer turnkey solutions to clients daily.
One of the standout members of the SDI Family of Companies is North American Drillers LLC (NAD), renowned for its expertise in constructing shafts up to 20 feet in diameter and 2000 feet deep. NAD's advanced ground stabilization resources, drilling proficiency, and specialized equipment are expertly managed by a team of experienced engineers to meet the increasing demand for large diameter ventilation and access shafts worldwide.
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