The ridgid k 40 drain cleaner is a compact machine for cleaning small secondary drain lines from 19mm 64mm 34in 2in used with the advanced dual feed hands never need to touch the cable the autofeed guide hose completely covers the spinning cable protects porcelain surfaces and greatly reduces job site clean up quiet and powerful the 18 hp induction motor quietly delivers enough torque to clear even the toughest blockages the k 40 can sit flat on the floor or countertop or tips onto its back