Standard pack = 1 piece(s). Type = Flap Wheel Set ; Abrasive Material = Aluminium Oxide ; Grade = Fine/Medium ; Grit = 60/80/120 ; Includes = (10) 120 Grit Flap Wheels, (10) 60 Grit Flap Wheels and (10) 80 Grit Flap Wheels ; Material = Aluminium Oxide ; Maximum Speed = 30000 rpm ; Outside Diameter = 1 Inch ; Shank Diameter = 1/4 Inch ; Specifications = 1 Inch Dia, 30000 rpm ;