Electric Screwdriver

https://www.ebay.com/itm/3mm-Coupling-Motor-Rigid-Flange-Guide-Shaft-Coupler-Motor-Connector/232597820268?ssPageName=STRK%3AMEBIDX%3AIT&var=532004818119&_trksid=p2057872.m2749.l2649 3mm

2x 18350 battery

https://www.ebay.com/itm/DC-6V-200RPM-Micro-Speed-Reduction-Gear-Motor-with-Metal-Gearbox-Wheel-Shaft/132309625030?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 Motor

https://www.ebay.com/itm/10X-Silver-Metal-Battery-Spring-Plate-Set-for-AA-AAA-Batteries-14-5mm-9mm-IBUS/1923