I just finished a project using the Kreg Micro Jig with 1/2" birch plywood. I made a few test holes and then began. It worked perfectly. I used the special 3/4" fine screws for hardwood. Every single hole was perfect. I've read where others had trouble with the tip of the screw coming through on the finished side. When you use the proper tools, do some tests, and follow the instructions you'll come out just fine.