
Odd so many don't bother to welcome new members anymore.
STEEL WOOL? What grade was the steel wool?

Not that it matters but there are numerous grades of steel wool yet none are specified for coin cleaning.

Could have just as easily used a Brass Wire Wheel on a bench grinder.
I suggest you do a Search on the Search tab at the top for coin cleaning, Acetone, cleaning coins, etc. Should be lots of previous posts on all the goods and bads.