If you're running cables through underground ducts or conduits, you know how much of a pain obstructions can be.

This 4-inch flexible conduit mandrel is exactly what you need to prep those pipes and pull cable smoothly.

It has convex disc contacts that scrub out mud, dust, silt, and other gunk without damaging the pipe walls.

The high-density polyurethane and ABS discs are tough enough to clean thoroughly but gentle enough not to scratch PVC or metal conduits.

One of the best features is its flexibility – it navigates sharp bends and curves like a champ, so you're not stuck fighting tight corners.

And it's bidirectional, meaning you can pull from either direction thanks to the steel pulling eyes on both ends.

That saves a ton of rigging time on the job site.

The max pulling force is a beefy 6600 pounds, so it can handle serious loads.

It's precision-sized for standard 4-inch conduits (discs max out at 3.75 inches) and the bright red color makes it easy to spot.

Whether you're an electrician, a telecom contractor, or just doing a big underground install, this mandrel cleans and preps the duct while also serving as a heavy-duty cable puller.