DIY HomeMade Make a Electric Screwdriver simple Us can use 8 x AA 1, 2 Rechargeable batteries or 8 x AA 1, 5v battery Materials to include: 1 Reducer Motor 12v switch button, Switch reverse 6Pin 8 AA battery case or 2 x 4 AA battery case Bit Screwdriver Tool, 8 x Battery AA 1, 5v Iron, wire, Multi bit screwdriver set br, br,