Standard Pack = 1 piece(s). Diameter = 4 1/2 IN ; Grit = 60 ; Hole Size = 7/8 IN ; Material = Z3 XL ; RPM = 13300 ; Size = 4 1/2 IN ; Standard Pack = 10 ; Style = T29 XL ; Type = Flap Disc ; Wheel Type = T29 ;