The 14" Fly Cutter HDD Reamer with built-in 20T swivel is engineered for horizontal directional drilling applications in medium to hard soil, cobble, and soft rock conditions. Rated for 20T pull force and compatible with all major HDD drill string thread connections via the included universal thread adapter, this fly cutter directional drilling reamer delivers reliable bore enlargement and aggressive cutting performance on trenchless construction projects including pipeline installations, utility bores, conduit runs, water and sewer line installations, and commercial HDD applications in challenging ground conditions.

The fly cutter blade design breaks through medium to hard soil, gravel, cobble, and soft rock formations while maintaining consistent drilling fluid circulation throughout the annular space, promoting effective cuttings evacuation and bore wall stability during the reaming pass and pullback. The integrated 20T swivel eliminates pipe rotation during product pipe installation, reducing torsional stress on both the drill string and the pulled pipe and ensuring a controlled pullback on demanding bore paths.

The 14" diameter is well suited for product pipes ranging from 8" to 10" in outer diameter, following the standard HDD industry practice of selecting a reamer at approximately 1.5x the pipe OD. The included universal thread adapter ensures compatibility with all major HDD drill manufacturers including Vermeer, Ditch Witch, Toro, and American Augers, making this reamer a versatile tooling solution for a wide range of mid-frame drill rigs commonly used on commercial and municipal trenchless drilling projects.

Universal HDD supplies a complete range of fly cutter reamers, fluted reamers, rock reamers, pilot bits, swivels, and full HDD tooling packages for contractors and dealers across the United States. Contact our team in Lake Zurich, IL at (847) 955-0050 or visit unihdd.com for the full tooling catalog.