I used a wire wheel on the end of a cord drill. They are $5 at Sippel.
Before(notice I've already done the outside):
After:
Then use oven cleaner on them, let sit for 15 minutes-
Wash them off with the water hose, let them dry COMPLETELY! It helps to use a rag and then let them air dry
Put that first coat on lightly
Then follow up with another coat or two and you're done! Do the other four
Before(notice I've already done the outside):

After:

Then use oven cleaner on them, let sit for 15 minutes-

Wash them off with the water hose, let them dry COMPLETELY! It helps to use a rag and then let them air dry
Put that first coat on lightly

Then follow up with another coat or two and you're done! Do the other four
