In the 08000 Spiral Duct Brush, the flat steel bristles are spiraled onto heavy duty wire spindle with a pulling eye on one end only. This product will quickly remove grit or light dirt within the duct before installing your cable.
The 08100 Heavy Duty Wire Brushes are fitted with a pulling eye on each end so the brush could be pulled back and forth for those extra tough cleaning jobs. Following initial installation of the ducting, it is often a requirement that certain sized mandrels be pulled through the ducting to ensure that there has been no collapse or obstruction in the duct.
These Test Slugs are simple aluminum mandrels designed to be pulled through the duct to test for out of roundness. The Slug diameters will fill approximately 70% of schedule 40 ducting and 80% of schedule 80 ducting. The ends are rounded for convenient pulling in either direction.
The 08500 Duct Checker discs are manufactured from high density polyurethane giving them the toughness to clear the duct without scraping or scratching the bore walls. The discs are spaced with gaps to allow passage through tight bends. The wire rope running through the mandrel is high quality, galvanized wire. Safety factor is 3:1.