Standard pack = 1 piece(s). Arbor Hole = 5/8 inch ; Diameter = 8 inch ; Face Width = 3/4 inch ; Material = Crimped Steel Wire ; RPM = 6,000 ; Thickness = 1/2 inch ; Trim Length = 2 1/16 inch ; Type = Straight Wheel ; Wire Size = 0.0118 inch ;