Two tool storage units that work as one and separate when needed: a 20 by 10.5 by 13.5 inch top chest sits on a 21 by 13 by 26 inch roller cabinet, together standing 23.5 by 13 by 42.5 inches. Because the halves detach, the top chest can be lifted off and carried to a job at the far end of the shop while the cabinet stays put holding the bulk of the collection, rather than forcing everything to travel together or nothing at all. Every drawer runs on ball-bearing slides that pull out smoothly under load and push back without the sticking common to plain metal channels, and each one carries up to 22 lbs of hand tools. EVA pads line every drawer bottom, cushioning tools so sockets and wrenches do not slide into each other and mar their finish or the paint underneath. A lockable design closes the unit against casual access, useful where a garage is shared or open to the street. The body is powder-coated steel, a finish that resists rust far better than bare metal in a damp space, and the whole 58.5 lbs assembly rolls on universal wheels with two of them braked so it stays parked once positioned. A handle on one side gives a firm push point for steering, and four hooks on the exterior hang wrenches and other small items where they stay visible. Assembly is straightforward.