A quick-release drill chuck with a locking function enables fast, tool-free bit changes. The speed can be finely adjusted and pre-selected using the built-in control electronics. The solid, adjustable depth stop made of metal ensures precisely repeatable drilling depths. The forward and reverse operation allows for screwing tasks. Thanks to the large soft grip area and additional handle with anti-twist protection, the machine can be operated comfortably and safely. The surface of the housing is soft-painted, making it particularly grippy.