Made of high-quality aluminum oxide-coated abrasive cloth. Use to sand, grind, and strip metal, wood, and paint. 1/4" Quick-change hex shank, for use with most drills and impact drivers. Max RPM 4,500. Contents: 1-1/2" Non-woven flap wheel. 2" Non-woven flap wheel. 1" Sanding cone, 1-1/2" Coarse flap wheel, 1" Coarse flap wheel.