How can I remove fine scratches all over stainless steel sink?
Get some 0000 steel wool pads. This is what they use on wood to get a really smooth finish on the polyurethane. Take these pads and put some dishwashing liquid on them and scour away. The only other alternative is to try and find some Sait brand polishing pads that they use on stainless steel equipment to polish it during the final stages of manufacturing. You need the backing pad which is part # 95172 and also the pads which are Sait # 77314 which is a medium grit pad, you want fine. Sait is a division of United Abrasives. You might be able to order these from an automotive body/paint shop. The backing pad will fit in a drill. The finer the pads the brighter the polishing aspect.