Beveling with 3M Abrasives 

would have never thought the last disc would be the best one for this. Impressive. I would have thought the first one would be tops

I’ve never seen a 3M rock or flap disc in any of the fab shops I’ve done NDT in or in any supply shop I’ve patronized. But I’m going to have to try to find some before continuing the rust and paint removal on my project car. Note to self: get a good dust removal system first because these things can create a lot of dust quickly.

Awesome!