Power Drill
Just Brainstorming
Key-less Chuck: https://www.amazon.com/Neiko-20753A-Keyless-Conversion-4-Inch/dp/B007TCHKXW
12V Motor: https://www.amazon.com/Nextrox-Mini-Torque-Electric-Motor/dp/B00BX54O8A
10 Batteries: https://www.amazon.com/1-2v-NiCd-2200mAh-Rechargeable-Battery/dp/B078YNFTK5
12V AC Adapter: https://www.amazon.com/inShareplus-Mounted-Switching-Connector-Adapter/dp/B01GD4ZQRS
Trigger: 3d printed
Chassis: 3d printed