Power Brushes, Carbon Steel Wire 1/4",Circular, End Brushes, 3”, Coarse Firepower small diameter wire brushes are designed for use in restricted or hard to reach areas. They are excellent for deburring, blending and cleaning of surfaces. Small diameter brushes are especially designed for use on portable air and electric tools. 1/4” drill shank.3” Coarse .014” 4,500 1423-2102 Yes - CARBON MONOXIDE