Med-Pac
Here is an image of a wheel similar to what we are using
http://www.polishing.com.cn/DSCF1829.jpg
HuFlungDung
we were considering using an angle grinder but we one of or initial concerns would be to get the angle and distances spot on, If they didn't match the part the finish wouldn't end up being to spec and just causing more issues. One other thing that was thrown around was to make a matching steel profile and have it diamond coated to make a reusable dressing tool. Not sure how well this would work though.