Standard pack = 1 piece(s). Type = End Brush ; Brush Diameter = 1 Inch ; Filament/Wire Diameter = 0.014 Inch ; Filament/Wire Type = Crimped ; Fill Material = Steel ; Maximum Speed = 22000 rpm ; Shank Diameter = 1/4 Inch ; Shank Size = 1/4 Inch ; Trim Length = 7/8 Inch ; Type = Stem Mount ; Wire Diameter = 0.014 Inch ; Wire Material = Steel ; Wire Type = Crimped ;