Forney 2-1/2 In. Fine Drill-Mounted Wire Wheel is a stem-mounted wire wheel brush designed for easy access into narrow holes and confined areas. Its crimped style makes it for light to medium duty applications, effectively removing rust, scale, and paint in hard-to-reach spots. Compatible with any 1/4" diameter electric power drill or 01990 pneumatic (air) drill, it operates at a maximum speed of 6000 rpm. This wire wheel features a 2-1/2" diameter, 1/4" shank size, and fine crimped wire style with a wire size of .008". It comes packaged individually in a clamshell for convenience and protection. Model Number: 72734