Can I use the same arbor for 2" & 4" 3M disks?
I have been looking at the 3M Green Corps disks in the store. They have the typical twist lock on the back. These appear a bit bigger than the 2" arbor. Will they fit? Is the twist-lock on the back the same size for the 2" & 3" disks?
Another question. I was in the store looking at two packages of 3M job packs of 6" 80 grit sanding disks. One set is green, the other set is gold. Same price for each. I couldn't find anything on the package to tell what the difference was. Any ideas? Is one more durable than the other? Both were peel & stick and 80 grit.