Metabo WP 1100-125 4.5-5in 11amp Angle Grinder

https://youtu.be/moFkpa_lH0c

Metabo 4-1/2-Inch / 5-Inch Angle Grinder | 12,000 RPM | 11 Amp | AC/DC | Paddle Switch | Tool-free Adjustable Guard | WP 1100-125, Green (Amazon Affiliate)
US: https://amzn.to/46XuHf9

Ardroit 14.6V 30A LifePO4 Lithium Battery Charger

https://youtu.be/iDXqyBv8ijM

Ardroit 14.6V 30A Lithium Battery Charger LifePO4 Battery Charger Intelligent AC-DC Trickle Charger for 12V LiFePO4 Lithium-Iron LiFePO4 Battery Recharging (Amazon Affiliate)
US: https://amzn.to/3s8LAof