This auger works very well. It is designed to bore into dirt, clay, sand or other soft soils. It was NOT designed to break through rocks or cut through heavy (larger than 1/4" or so) roots. No auger of this size and power could be expected to do that. The quality is quite good for this price range. It has plenty of power and is easy to handle. This unit DOES have a clutch, and will NOT twist your hand off if it gets caught on an obstacle. A very nice feature. This unit is perfect for the occasional hole for a mailbox or bird feeder. I can't speak to how it would hold up boring for hundreds of fence posts, but I'm very satisfied. Recommended.