JoolTool 3M Scotch-Brite Yellow Radial Bristle Brush Assembled with Plastic Tapered Mandrel Hub, 6 Ply, 3" Diameter, Grit 80 Use for metal: cleans firescale, heavy rust and metal castings, removes deep scratches, deburrs Use for wood: removes and sets wood grain. Sands, removes stain; ideal for freshly cut wood and carvings The perfect alternative to wire brushes They require minimal pressure and easily conform to tight areas, crevices and contoured parts Size: 3" diameter