The AI-000422 is a grounding cable typically used for painting plastic parts, as the BU-118 clips at each end are smooth-jawed and allow for rapid removal without damaging the surface of the clamped object.
The AI-000473 is a grounding cable intended for plastic painting applications. The smooth jaws of the BU-118 clip allow for easy removal from delicate surfaces.
The AI-000498-18 is an 18" grounding cable with BU-121 clips at each end. Useful for painting objects with surface corrosion, as the toothed-jaws on BU-121 clips allow for a solid connection.