Features and Benefits: Flap Wheel, 1/4" Shank Mounted, featuring durable, high-grade aluminum oxide coating for aggressive cleaning and refinishing on most wood or metal surfaces. ; Ideal for mounting on power drills or other chuck driven machines.; Bulk.; Carded version is Forney 60190. ; ; Wheel Diameter: 1" (25.4mm) ; Wheel Height: 1" (25.4mm) ; Grit: 60 ; Max RPM: 25,000;