A power driven in-line disposable torque-limiting device having a tool shaft extending axially through upper and lower shanks, and a spring to connect to a nut and a drive shaft, the tool shaft extending from the distal end of the device and a drive shaft extending from the proximal end of the device which mates with a power supply to provide rotational force, is disclosed. The face-to-floor gears within the device provide superior heat management capabilities, thereby reducing ablation and melting as compared to traditional gear arrangements. A fortified connector mount supports a power driven shaft.