US Patent 11685038 Tool box

A tool box includes a first housing and a second housing that can be opened and closed relative to the first housing. A first receiving seat and a second receiving seat are rotatably connected in the second housing for receiving a plurality of screwdriver bits. When the tool box is closed, the first receiving seat and the second receiving seat are turned in opposite directions to be accommodated in the second housing, and the bits received in the first receiving seat and the bits received in the second receiving seat are partially overlapped.