I am looking for a tool that can be used on these. They have a flat surface with two holes drilled in the top, and are often found on binoculars. The screws are too tight to be undone with a lens wrench.
the one in the picture looks like it also has a tiny grubscrew to prevent it coming loose, this is not usual.
the one in the picture looks like it also has a tiny grubscrew to prevent it coming loose, this is not usual.