This amazing tool. On the east coast we have hard rock clay. I've been using this soil auger consistently since I've had it - I've had to plant a lot of flowers - and then some! π±πβ€οΈ This drill cuts my time in half and I can't plant more in one day than before I bought it. Well made - durable - perfect for my cordless drill. I don't usually write reviews for purchases, but if you're a plant lover, then this tool is a must! Just make sure you have a firm grip on the drill and take your time. If you drive too fast and hit a big root or rock, the drill will spin. This is not the instrument's fault - operator error. I had a cordless sling for drilling wood.