Long lasting Brass-coated hardened steel wire reduces sparking and wire breakage Ideal for rust removal, paint stripping, material removal, deburring sharpened edges, welds blending Wire brushes are mounted on 1/4-inch hex shanks, universal fit and compatible with drills and impact drivers, 4500 Max RPMIncludes Eight Wire Brush Wheels, Brass-Coated Bristles, 2-inch in DiameterLong lasting Brass-coated hardened steel wire reduces sparking and wire breakageIdeal for rust removal, paint stripping, material removal, deburring sharpened edges, welds blendingWire brushes are mounted on 1/4-inch hex shanks, universal fit and compatible with drills and impact drivers, 4500 Max RPMCrimped wire bristles design is ideal for corners, edges, and detailed surface work