Joysun Alumina arbor mandrel non-woven polishing discs are designed for compatibility with die grinders and right angle grinders. The discs are mounted on a spindle with a steel shank with flanges used individually or stacked for varying widths. The open cell structures of the polishing discs help to perform surface conditioning on hard to reach areas. They are highly efficient when it comes to stock removal, grinding performance and they feature an extended working life. The arbor holes can be reduced to smaller diameters with a reducer bushing.