Steel wool is ok to take out surface scratches but you will still need to finish with a buffing wheel. If the scratches are deep, start with 1000 grit wet sand then 1500 then buff with emory and finish with a buffing polish for stainless. If takes me about 20 to 30 hrs to straighten/buff out trim for an average chevelle.
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Steve Strasemeier (70SS)