Made of tempered spring steel. Great item to have on the road. Bits are held by a strong magnet. Each set includes four sizes. Makes it easy to remove and install molding around fender wells and other tight places.
Place handle over the bit and turn.
Reverse handle on bit to tighten. Ratcheting action with infinite settings. This set can get you out of trouble when you don't have access to an air driven drive. Use it to loosen rusted or frozen nuts, bolts or screws. Can also be reversed to tighten.