I had to sanded some parts , and wheels for my clock, and I remember that I used before that set up, which work perfectly for delicate sanding. Probably you know that kind of sanding, but just in case......!
As you see those sanding strip are the same lenght as a blade , and for my machine I have to cut the two round parts. Also I used a larger strip for different grade, as on the photo I cut a bit of the strip so It can get through the hole.
Hope it help someone !
planeur