Provides the same protection for your power supply cable as the straight-thru type AND... Exits the cable flush against the panel, saving space and directing the cable parallel to the panel. Overcomes space limitations and acts as a back or bottom bumper. Corresponding Mounting Hole Plugs can be used to fill blank/unused Mounting Holes and thus allow for a single panel design for multiple applications. Consult Heyco for other wire types and sizes. SR assembly tools. For Double D Mounting Hole Punches, click here.