The 20" Fluted HDD Reamer with built-in 25T swivel is engineered for large-diameter horizontal directional drilling applications 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 maximum bore enlargement and efficient cuttings evacuation on heavy-duty trenchless construction projects including large pipeline installations, municipal utility bores, industrial conduit runs, river crossings, and infrastructure projects requiring oversized bore diameters in soft to medium ground.
The fluted reamer design ensures superior drilling fluid circulation throughout the annular space, promoting effective soil displacement and maintaining a clean, 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 the longest and most demanding bore paths in soft to medium ground conditions.
At 20" in diameter, this reamer is ideally suited for product pipes ranging from 12" to 16" 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 powerful and versatile tooling solution for large-frame drill rigs including Vermeer D100x120, Ditch Witch JT100, American Augers DD-110, and other machines rated for the required pull force and fluid flow on large-diameter bores in soft to medium soil conditions.
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.