When working on stainless steel sheet or stainless steel surfaces, sometimes there is a need to remove tool marks or maintain a visually pleasing finish that is visible. For a while I've struggled to achieve this, I've tried using a standard grinder which of course leaves a round surface (this may be acceptable in some cases). On large areas, this tool will leave the same finish as a reference stainless steel refrigerator door. Clean and pleasing to the eye. PLEASE NOTE: Some effort is required if the stainless steel is dented, scratched or marked too heavily. My advice is to use a sander with sandpaper (120 grit or better) and remove ALL surface imperfections and then use this tool. Great product that can add rigidity to your parts.