Rip through tough stoppages with the unique ClogChopper multi-function cutting tools ; Six self-sharpening blades dig into encrusted debris and root masses, easily grinding up stoppages, scale, and crystallized urine, without risking pipe damage ; The spherical design maneuvers around tight bends and traps, thoroughly and safely cleaning metal, plastic, and clay pipes ; As it spins it also self-sharpens as it scrapes along the pipe walls ; It’s excellent for clearing stacks, downspouts, mains, as well as for drain lining jobs ; For use with 5/16” and 3/8” Cables