Digs holes for flower pots in no time! Caution should be exercised as injury may result when connected to a powerful drill. My planter was a mass of roots that even a digger couldn't get through. I drilled several rows of holes to break up the roots and it worked great. Suitable for large plants, just wiggle it and it will cut a bigger hole. One piece of advice: wear tall rubber boots so you don't clog your garden shoes with mud. Be especially careful on rocky soil or soil with knotted roots. I recommend this product.