The Model D-5 drum machine runs 3/4" dia. Tri-Max cable for cleaning 3" - 10" diameter lines up to 100 ft. Tri-Max 3-element cable is the industry's toughest cable. The High density polyethylene drum and belt guard will not rust or dent. Three sealed heavy-duty ball bearings support the drum and a thick wall guide tube extends wear. Powered by a heavy-duty 1/2 H.P. capacitor-type motor to provide more torque. The power feed and drum can be quickly removed. Loading wheel is built into the handle.