Provided are container assemblies, including at least two containers detachably attached to one another by locking arrangements.

One or more devices are provided that are configured to detachably engage within a modular system. The one or more devices are expandable to provide a surface to perform work.

An adjustable multi-use cart is disclosed. The adjustable multi-use cart may include a core assembly having an upright main member and at least one axle coupled to the upright frame member. A base assembly is removably coupled with the core assembly and includes a main frame member and a distal support cross arm coupled to the main frame member. A platform is removably coupled with the base assembly. A neck assembly is removably coupled with the core assembly and includes an upright main member and at least one cross arm coupled to the upright main member. At least one wheel is removably coupled with the at least one axle. At least one basket is removably coupled with the neck assembly.

One or more devices are provided that are configured to detachably engage within a modular system. The one or more devices are positionable to provide a support structure upon which work can be performed.

A simple, versatile tool and accessory caddy, temporarily attachable to a wall, rollable across a floor and securely providing easy access to a tile installer of all needed tile installation tools and accessories.

A wheeled storage unit for supporting a hydraulic pump and pump accessories is provided.

A foldable tool cart includes a first bearing assembly, a second bearing assembly, a first support assembly and a second support assembly. The first support assembly and the second support assembly are arranged oppositely and movable toward or away from each other. The first bearing assembly and the second bearing assembly are rotatably connected and are both arranged between the first support assembly and the second support assembly. A side of the first bearing assembly away from the second bearing assembly is connected to the first support assembly. The first bearing assembly is slidable and rotatable with respect to the first support assembly. A side of the second bearing assembly away from the first bearing assembly is connected to the second support assembly. The second bearing assembly is slidable and rotatable with respect to the second support assembly.

A system that can include a cart and multiple mounting assemblies, with each one of the multiple mounting assemblies configured to be interchangeably attached to the cart, and with each one of the multiple mounting assemblies configured to receive one of multiple portable tools and secure the one of the multiple portable tools to the cart. The one of the multiple portable tools is different than a second one of the multiple portable tools.

An apparatus providing a platform for installing screws can include a cart with wheels, an assembly rail system mounted to the cart, and a screw assembly mounted to the assembly rail system. The screw assembly can include a screw feeding device, a screw guide tube, and a screwing device such as a drill that rotates a drive shaft that engages a screw received from the screw guide tube. The screw feeding device can include a screw rack that holds screws, and a magnetic grip that moves a screw from the screw rack to a screw feeding tube that is connected to the screw guide tube. The screw guide tube can include bristles for centering a screw received from the screw feeding tube. The apparatus can include a computer control system that operates the screwing device and the screw feeding device.

The use of a load transporter for transporting loads, preferably tool cases, as a rack system, the load transporter being fastened on a wall by at least one adjustable fastening device arranged on the wall.