drain cleaning machine, 330 mm drum, 1/3 hp (250 watt), 1/2"x75' solid inner core cable, cable feed, 227 rpm, 5 cutters, gfci tenadura advantages and benefits of this sewer machine stronger cable: 1/2”x 75' solid, inner core sewer snake cable, allowing more power to be passed to cutting heads; cleans drain pipe of id from 2" to 4". durable steel drum: no degradation from weathering as with plastic drums. clean working area: hold dirty, pull-back water inside drum, which can be discharged outside of buildings after each job. easy-change cable: the machine has a build-in short connection cable which allows the cable to be easily changed with other cables (3/8"x75’, 1⁄2”x65’, 1⁄2”x75’, 7/16”x75’ and 7/16”x100’, etc.) easy-change drum assembly: the drum assembly can be easily changed with other drum assemblies with other drum assemblies holding different cables. all electrical components ul certified: makes this sewer snake, drain cleaning machine very reliable. more compact design: can be stored in a very compacted space, especially favorable to homes, restaurants, hotels, and apartment complexes where storage spaces are limited. cable feed/power feed/auto feed (optional): has the option to install, helps drive cable into and retrieve cable from drain lines; makes jobs much easier. cable guard (optional): has option to install; prevents cable from kinking, protects worker. easy to move: equipped with a moving handle and two moving wheels. easy for operation control: built with an internal foot-switch. motor: 1/3 hp, 120 vac, 60hz, 6' power cord made with gfci. drum: 330-mm od, powder-coated steel drum, drum operating speed: 227 rpm. 1 year manufacture-defect warranty (free return if machine has defects).