The cordless device, which wirelessly connects to the local network of organizations that use it, allows engineers to tighten bolts and other mechanical fastenings to precise torque levels that are critical for safety and reliability. When fastenings are too loose, they risk causing the device to overheat and start fires. When too tight, threads can fail and result in torques that are too loose. The Nutrunner provides a torque-level indicator display that’s backed by a certification from the Association of German Engineers and adopted by the automotive industry in 1999. The NEXO-OS, the firmware running on devices, can be controlled using a browser-based management interface.

Basically to manage and provide a uniform performance. Still weird. If that thing's so important, letting it sit like that open to reconfiguration over the air doesn't sound that clever. I assume engineers do the same couple of nuts so configuring a program over a wire could be just as good.