The Root 66 is a real advance in sectional cable machine design. No mid-range machine has its versatility and power. Look at its versatility. You can drive 5/8" cables for lines up to 3" and 7/8" cables for 4" lines and you can switch from one to the other in seconds, without touching the jaws, without an adapter, without tools. And for sink drain work, slip on a drum that holds smaller cables. To operate, just feed a cable into the line and slide the back end into the machine. The excess cable goes into a guide tube. Turn on the sealed motor, press down on the handle, and the Root 66 starts spinning the cable at 400 rpm. The cable stops rotating as soon as you lift the handle, so there's no additional torque buildup. When using a drum for small drain work, the drum stops turning when you lift t he handle to the neutral position. The Root 66 has a wide four point base for greater stability. Its interlocking tubular construction also gives it excellent durability. To protect the gears from dirt and for easier cleaning, the machine has two internal plastic shields. A ground fault circuit interrupter is standard equipment.