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Drilling Products Inc. (DPI) is the equipment subsidiary of REI Drilling Inc. (REI). For more than 25 years REI Drilling has been the leader in underground directional drilling. In 2002 REI began modifying downhole motors to improve motor life and maximize performance. After six years of field tested improvements DPI was created to provide superior down hole motors to the drilling industry at large. Today DPI motors are used 24 hours a day, seven days a week, on three different continents. EDGE motors feature top quality workmanship, enhancements available nowhere else, and personal customer service which gives our clients the EDGE!