The handle has interchangeable bits that can be replaced when the cutting edge becomes worn. This is an interchangeable screwdriver handle that can be used with electric screwdriver bits. It comes with a bolster (H12) that allows for final tightening using a wrench. For screws that are tightly fastened, use a hammer and then tap them with a screwdriver to make them loose.
For removing stubborn screws and tightening screws.
