The protagonist this time is a badly broken Milwaukee M18 FID electric screwdriver.
Main problems: the shell is broken, the main control is broken, the screwdriver head is broken, and the gear is broken.
I replaced a set of master controllers, repaired the broken case, and replaced the damaged gear.
After twists and turns, it finally returned to normal.
Now I use it to drive screws or drill wood very well, and the 30mm drill bit can also be easily handled, and the efficiency is very high.