7-in (17.8-cm) CENTRALIZER SUB – Built to deliver precision engineered performance, this 7-in (17.8-cm) centralizer sub is designed to enhance borehole stability in medium diameter HDD applications. The larger OD improves tool string centralization and reduces contact with the borehole wall, helping to minimize wear and improve drilling efficiency. Built for durability and compatibility, it integrates seamlessly into standard drill strings.