The sanding disks look like the cutoff disks made out of sandpaper mounted on the same dremel attachment. It is not as quick as the drums but way cheaper and 60 grit will clean the rust off anything and is perfect for sharpening shovels and garden tools. I use up to 1000 grit in polishing stuff but it takes some practice and trial and error to get the tecnique and speed right.

Andy and Jerry you guys are total computer hackers, I bet you even have speel check?