With this paper, I wanted (drywall) so bring screws in plasterboard, they are flat or slightly below the surface of a gypsum board, so that they can be smoothed invisible. I had purchased the Schrauvorsatz for faster, yet very precise workmanship. The processing of the article is neither cheap nor exceptionally high quality. Have tried it for some time, but then decreased again because with just a little care, the same result could be achieved with the cordless screwdriver and normal Phillips bit. In contrast, I had already occasionally tighten with normal paper when accidentally a screw slightly crooked and / or at the "edge rounding" of the plasterboard has been applied. The spacers of the attachment make sure that the screw will not complete (sub) plan can be sunk. Overall, it was then with normal bits but simple.