Some Ryobi tools have batteries that are hard to remove; you'll want to reach beyond the battery latch and pull, all while ...
When you work with old metal it's important to consider how fragile it becomes with time, so it's not that easy to restore ...
I found this old Hand Sheet Cutter in a scrap metal yard. The owner was using it on daily basis, so he couldn't sell it to me, but he agreed to allow me to restore it, so I'm sharing results with you.
Try a DIY method like inserting steel wool or a rubber band between the screw head and your screwdriver. Or invest in a screw ...