I know air tools aren't the most economical when it comes to this stuff, but I need to do some sanding and don't want to grind with the dremel. Anyone ever use any of these pneumatic sander jobs like the one pictured below? If so, are they decent?
I have plenty of cfm to run it, just want to make sure they last and aren't totally futile to use. Also, I assume you can adjust the angle, but is that right?

I have plenty of cfm to run it, just want to make sure they last and aren't totally futile to use. Also, I assume you can adjust the angle, but is that right?