The 12" Fluted HDD Reamer with built-in 25T swivel is engineered for horizontal directional drilling applications requiring higher pull force capacity in soft to medium soil conditions. Rated for 25T pull force and compatible with all major HDD drill string thread connections via the included universal thread adapter, this fluted directional drilling reamer delivers reliable bore enlargement and efficient cuttings evacuation on mid-size trenchless construction projects including pipeline installations, utility bores, conduit runs, water and sewer line installations, and commercial HDD applications where greater pulling capacity and drill string strength are required.
The fluted reamer design ensures consistent drilling fluid circulation throughout the annular space, promoting effective soil displacement and maintaining a stable bore wall during the reaming pass and pullback. The integrated 25T swivel eliminates pipe rotation during product pipe installation, protecting both the pipe and drill string from torsional stress and ensuring a smooth, controlled pullback on longer and more demanding bore paths in soft to medium ground conditions.
The 12" diameter is well suited for product pipes ranging from 6" to 8" 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 full compatibility with all major HDD drill manufacturers including Vermeer, Ditch Witch, Toro, and American Augers, making this reamer a versatile tooling solution for mid-frame drill rigs including Vermeer D40x55, Vermeer D60x90, Ditch Witch JT40, Toro TDD4020, American Augers DD-65, and other machines rated for the required pull force and fluid flow on mid-size bores in soft to medium soil.
Universal HDD supplies a complete range of fluted reamers, fly cutter 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.