Forney 3 In. 1/4 In. Hex Coarse Wire Brush is designed for light-duty cleaning tasks, making it i for removing dirt, rust, paint, scale, and weld spatter. This wire brush is compatible with portable 1/4" diameter electric or air tools, including cordless drills and pneumatic air drills. Featuring a 3-inch diameter and a 1/4" hex shank size, it has coarse wire bristles with a wire size of .012" to provide effective cleaning performance. The brush operates safely at a maximum speed of 6000 rpm and comes packaged in a convenient clamshell for easy storage and handling. Model Number: 72731