Omnitool
Omnitools are multipurpose devices made for the convenience of mechanical engineers. While features vary by brand, model, and make, most omnitools have everything a mechanical engineer needs to diagnose mechanical and electronic issues in their machinery in equipment, as well as the tools to repair, improve, or dismantle components.
Omnitools come in various shapes and sizes, from handheld devices meant for residential use, to high-end mobile mechanical engineering labs used in the manufacturing of shuttles and starships.