Okay, I was a bit concerned when I decided to buy this mini drill, but I had a plan that it works when it works what would be perfect for. I had to work the day I got it and my goodness this dork worked fantastic! I have used it in various types of hard dirt, sand, sand/rock and mud/clay mixes and it has all performed well to excellent. In fact, I was a bit surprised by the performance. I hooked it up to my Milwaukee 18 volt drill and got to work. Highly recommend this when making new plantings or digging in hard-to-reach areas to loosen the soil a bit.