The RIDGID K-400 Drum Machine offers several unique, user-friendly features to make the toughest drain cleaning jobs easier and hassle-free. Designed with a sleek profile, the Model K-400 is a great fit for drain cleaners, service plumbers, facility and institutional maintenance departments and property management companies. The integrated transport cart allows for easy movement to and from the job site. Heavy-duty, large wheels easily navigate over bumps and up stairs. There is also an integrated telescoping handle that provides high-handle height during transport. It is fitted with AUTOFEED®, a patented, automatic cable feed that powers the cable in and out of the drain. Reverse the direction of the Autofeed and the cable feeds back into the drum A cable control system causes the drum to stop spinning when the blade becomes lodged in a blockage, limits potential for cable to flip-over in the drum and helps to indicate to the operator when blockages are encountered. Solid Core Cable