Standard Pack = 1 piece(s). Type = Flared End Brush ; Brush Diameter = 1 1/2 Inch ; Fill Material = Carbon Steel ; Filament/Wire Diameter Range = 0.0101 - 0.02 Inch ; Filament/Wire Diameter = 1.04 Inch ; Wire Type = Crimped ; Bridled = No ; Pilot = Nonpiloted ; Maximum RPM = 2500 ; Shank Diameter = 1/4 Inch ; Overall Length = 3 Inch ; Shank Included = Yes ; Shank Length = 3/4 Inch ; Shank Material = Steel ; Trim Length = 1/4 Inch ;