The inspection wedge is a wedge with a hole through the middle. It's a multi-purpose tool that can be used with a flashlight inserted to see inside panels, as a knockdown holder during repairs, a pry tool for R&I, or as a guide for your borescope into panels.
Inspection wedges come with a free light pre-installed as a convenience. The light is easily replaceable with an Allen key. This light is not under any type of warranty.