I'm appreciating your shop more and more.
Yes, the small diameter disks have their space. for me, sometimes I need to grind a small area with a bit of precision or limited access. In those cases, they have been the ticket!
I just had encounter of how nicerah it would've been if had a 2'' sanding disc, instead I tried to smooth out the best I could with a die grinder. Down the shipyard we use 5'' Cubitron grinding wheels and sanding disc, the trouble I see with the sanding disc is the edge, 1/2'' thereabouts wares out I think a little too fast, but sanding down welds/burning slag yes they work good, for sanding paint not so good.
I was hoping for some west coast trail test and reviews on the the Norton Ceramic disc before I shell out $4-5/sanding discs. You know for making and producing a good test and review, someone needs to do the test that likes making shiny metal and a lot of it. :stirthepot: