RS550 Motor 12 Teeth 12V 16.8V 21V 25V 19500 RPM DC Motor Two-speed High Torque Gear Box for Cordless Electric Drill Screwdriver
https://www.vogueparade.com/shopping/EN/A26/1/4000072948107/rs550-25v-19500-rpm-dc-motor-with-two-speed-12-teeth-and-high-torque-gear-box-for-electric-drill-screwdriver//