I have clay soil so it's heavy and hard and difficult to drill. It was wet so not as hard as it would be dry. It was hard on the wrists and fingers as it would snag and pull the drill in my wrists, I would have used a smaller drill due to the hand injury. I made about 20 holes and the auger broke off. It broke just behind the drill chuck. I'm not sure the auger could have lasted longer now that I've seen it work.