Brush Research's BUS4S12 single row knotted cup brushes are available in a 4" diameter. Knotted cup brushes are recommended for removal of burrs, weld scale and rust, edge blending, paint removal and surface prep. Made with 0.0118 stainless steel filament, the brush has a 1.250" trim length with a 5/8"-11 arbor hole for attachment to grinding tools.
![BRM BUS4S12 Wire Cup Brush 4" diameter, 1" Trim Length, 5/8-11 Arbor Hole, .012 302 Stainles](/vendors/1175201/large/BUS_Knot_Single_Row.jpg "BRM BUS4S12 Wire Cup Brush 4" diameter, 1" Trim Length, 5/8-11 Arbor Hole, .012 302 Stainles")
