The RIDGID® K-6200 drain cleaning machine will clean drain lines 3 to 6 in diameter and up to 200 ft in length. The 4/10 hp universal motor spins 5 /8 in cable at 285 rpm. When the cable hits the blockage, the motor gears down automatically to deliver greater power and enhance operator control. The molded polyethylene drum includes an inner drum that guards against cable flip over. An integral ground Fault Interrupter (GFCI) is built into the line cord and a kickstand base is provided for machine stability during operation. A pneumatic foot actuator provides on/off control of the motor. The drum powers a 5/8 in inner core cable that has a quick change coupling system for connecting or disconnecting tools. The cable is fed in and out of the drain by a auto-feed assembly at a rate of 0-28 feet/min. An integral torque limiter will cause the drum to stop rotating whenever excessive torque is created when the cutting tool attached to the cable hits a snag and stops rotating.