Stainless Steel Flange

I purchased a couple of stainless steel flanges for my kegerator project. As I expected they are a dull satin with rough edges. This simply would not due so I put a buffing wheel on the grinder and polished them with three different compounds going courser to finer. I finished them up with a loose unstitched clean wheel and some polish. Pictures don't do it justice, but you can see the one on a right is pretty shiney, the one of the left is what they looked like before polishing.