Brushless 2212 rotary tool

Simple brushless rotary tool with banana terminals and potentiometer hole for 2212 motors.

Needed parts:
-[2 Banana terminals](https://www.banggood.com/DANIU-10-Pairs-4mm-Terminal-Banana-Plug-Socket-Jack-Connectors-Instrument-Light-Tools-Black-and-Red-p-1046083.html?p=6F02122925841201511N)
-[2212 motor](https://www.banggood.com/Racerstar-BR2212-2450KV-2-3S-Brushless-Motor-For-RC-Airplane-p-1085432.html?p=6F02122925841201511N) or similiar with mounting plate
-[drill chuck](https://www.bang