Abstract: A tool display and storage panel assembly (29) having three vertical panels (10, 11, 12) arranged into a three-sided enclosure of open display walls which hold a unique arrangement of several shelf-like racks of specific sizes, attached horizontally to the faces of the display walls in specific locations. Each of these racks contain specific numbers of either pegs or holes of specific sizes and in specific locations and arrangements which securely hold groups or sets of the most commonly used automotive hand tools for easy selection, removal and replacement. This display panel assembly is uniquely designed to be installed on, and attached to, the top tray of a standard mechanic's work cart (13) for easy movement of the tools to the immediate work area. The tools in this display panel are secured from theft when not in use by means of a lockable rigid security cover (30) that encloses the open areas of the tool display panel.