too many design flaws.

I make it short times, and explain just what Dremel has done everything wrong here :)
1. The Dremel is fastened with a large plastic screw. In itself not bad, but it lacks a stabilization in the upper area, then wiggle the drill and accurate when entering the cuttings, it shifts often. Very annoying when you want to drill a 2mm hole in a strip center just 4mm example, and breaks out sideways by the lack of leadership of the drill.
2. The depth adjustment is extremely fiddly, and the small plastic screw slip slowly but surely through, making the setting is no longer correct after a few holes.
3. The height adjustment is also not a deal breaker. The clamping screw is in the back so badly that you have to go to cuttings always make sure when lowering, not sideways twist.
4. In general, it is not possible to adjust the drill exactly in the middle, because there is no guide for it. When adjusting the height to automatically rotate the drill to the tube, and there is a misalignment.

In total, there are just too many weaknesses in the design to work properly with the part. Therefore actually had zero points the correct rating.