The cordless Super-Vee™ power drain cleaner has a stronger 12-volt variable speed motor and longer battery life to unclog sink, shower, toilet and laundry drain lines ranging up to 3 inches in diameter. A slide-action chuck automatically adjusts to take any diameter cable from 1/4 to 3/8 inches. It carries up to 50 feet of 1/4- and 5/16-inch and 35 feet of 3/8-inch Flexicore® cable.