JoolTool 3M Scotch-Brite Green Radial Bristle Brush Assembled with Plastic Tapered Mandrel Hub, 6 Ply, 3" Diameter, 1 Micron Use on metal: lightly deburrs (gouges and v tools), polishes jewelry to a high luster without removing metal; great for gold, silver, platinum, etc Use on wood: gives a very high luster on burnished wood surfaces The perfect alternative to wire brushes They require minimal pressure and easily conform to tight areas, crevices and contoured parts Size: 3" diameter