I used this product to cut holes in plywood. I knew I liked it before I bought it, that it would be difficult to use and a little dangerous, so I was ready. However, there are very few ways to drill a perfect hole of this size in a tree. First, use a powerful corded drill. A cordless drill is not perfect and only the biggest ground drill can use one. Second, be careful. It's a large cutting tool that rotates unlike anything I've ever used. third, walk slowly. In some places, the cutter will grab and pull the drill hard. All in all it cut the perfect holes as expected and did my job as requested.