3M Scotch-Brite Radial Bristle Discs 80 Grit (Pack of 5) Cabinet shop and furniture applications include: Light sanding of grooves. Light polishing of carvings. Vein sanding. Defuzzing crevices. 3" diameter. Sanding raised grain between sealer coats. Not for stock material. Mandrels sold separately, Search: 3M Scotch-Brite Mandrel