Hobby tools with errors

If you take look at the manufacturer's product video, you can see how unstable the tool behaves during drilling. Good results can only be achieved through improvements and tricks. So I have the drilling of 18 mm chipboard furniture shake and slides of "Meisterdüblers" prevented I have clamps on both sides of the "Meisterdüblers" a 12.5 mm wide strip, so that the "Meisterdübler" like a vise the has clamped chipboard. Furthermore, I have to almost the final depth using a center drill for drilling because z. B. the 8mm drill sleeve has a diameter of 8.25 mm and thus, was not sufficiently narrow for precise guidance of a drill, according to "free hand". Slanted holes drilled have crooked furniture to order. All in all, I am disappointed by the product in stock.