This auto-feed drain cleaner is fitted with 100ft 3/8-inch manganese steel cable, featuring great breakage, rust and corrosion resistance without tangling. It includes 8 interchangeable cutters to clear clogs for 1–4 inch curved pipes. Powered by a 370W high-speed motor, the semi-enclosed drum allows easy cable length observation, while built-in GFCI provides electric shock safety protection. Auto feed system cooperates with control knob and air-activated foot switch for efficient pipe cleaning. Equipped with shock-absorbing wheels, detachable handle and tool hook for easy movement and storage, it perfectly clears clogs in drains, sinks and toilets for home, restaurant, factory and school use.