One of the most necessary machines in the locksmith's workshop is drilling. There are many options for implementing this idea, including using a hand drill. The author of the video went a little further and made the spindle from an old screwdriver, thanks to which the machine works from 12 Volts. Another non-standard solution can be considered a cable feed drive.
The construction of this tool can take more than one day, including the study of the device and the choice of manufacturing options, but after watching the video you can be inspired to create your own drilling machine.