Toolbox

It could mean a small portable box that can carry a few tools to a project location or a large storage system set on casters.

Many have a removable tote tray that sits on a flange inside the lip of the box, with a single larger compartment below.

Metal boxes are also subject to rusting and their sharp edges can mark the surfaces of things they are banged against.

Metal is, however, known for being stronger than plastic, so one should balance its disadvantages against the need to withstand abuse and support the weight of many tools.

Portable chests are a type of tool storage that is small enough to carry, but has drawers to organize contents.

Toolcarts (also known as rollcabs) are commonly used in the transportation industry for maintenance and repair of vehicles on location.

Used as portable work stations, some of the larger types are self powered and propelled, for example, pit carts in automobile racing.

Standard site toolbox
Standard site toolbox as used, e.g., in mechanical workshops like automobile repair shops
Simple wooden toolbox
Cantilever toolbox with carrying handle, popular with mobile service personnel of various professions, in opened state. For transport, the different compartments are kind of folded together (symmetrical towards the middle from both sides) so that a closed compact box with the footprint of the lowermost section results.
Portable chest with a carrying handle
Tool chest with wheels
A toolset in a plastic cover.
Iron worker's toolbelt
A professional socket toolset in a metal box, containing ratcheting socket wrenches in two sizes, sockets, bits and accessories. Such toolsets are standard equipment in mechanical workshops of various types. The image contains annotated descriptions for each item, visible when enlarged.