How a cordless drill works
18:04
High-Speed Video INSIDE Impact Wrenches: How They Work
16:07
inside a cordless drill (with schematic & gearbox autopsy)
19:06
Drill Repair
8:11
How a hydraulic jack works
4:54
How a gas regulator works
16:13
Bosch Cordless Brushless Drill Restoration/Gearbox Rebuild/GSB 18V-EC
4:14
How Impact, Hammer and Torque Drills work?
5:18