The DM162 is recommended for 2-inch to 6-inch diameter residential lines, floor drains, roof vents and light commercial drain lines. If you're looking for a strong machine that is fit for various jobs, check out this big, tough, versatile upright. The DM162 can be configured just the way you want it for the way you work. We think it's the best that money can buy and will give you long years of service, no matter how tough the jobs. A steel head bearing holds the reel in place and swing bolts allow for quick reel changes. The winch hook at the top of the frame makes it easy to lift the machine.