“A miniature drill press for hobby style drills. Ideal for drilling holes in PCBs. http://youtu.be/6TpeNm8IX6g The included tool mounts are designed to fit a RotaCraft RC18 Hobby Drill. It should be fairly easy to design mounts to fit other hobby drills. Update: I should have mentioned that I included the original thumb-wheel scad/stl just in case. I replaced it with the arm as I found the thumb-wheel hard to use.”