Rubber abrasive type cup polishing wheels are used on all straight line edging machines to polish the flat edge of the glass after grinding. Different grit sizes of abrasive are used on each wheel to remove diamond tool lines left from the grinding process and leave a clear polished edge. Usually the final polish wheel is cerium oxide impregnated to leave a brilliant polish. We keep stock on 150mm dia x 70mm x 40mm in 10S40/10S60 and 10S80 grit sizes also cerium oxide final polishing wheels.