A box for transporting and/or storing small parts, tools, machines or such objects comprises a body, a lid and a receiving space formed by the body and the lid. The body has a bottom and side walls surrounding the bottom. The lid is connected to the body. The receiving space contains at least one storage container for small parts, tools, machines or such objects. The receiving space comprises a flat section facing the storage container on one side thereof and a grid formed by a plurality of protrusions. The storage container is arranged on the flat section, in a position that secures against lateral movement, using at least one, preferably a plurality of the protrusions.