General Drain Cleaner Clog Chopper F/5/8& 3/4" Cables (2-1/2CG) #128830 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 Excellent for clearing stacks, downspouts, mains, as well as for drain lining jobs.