Weiler® wheel brush, narrow face, series: TC Series, 4 in brush dia, 3/8 in face width, 5/8-11 arbor hole size, cable twist knot filament/wire type, 0.02 in filament/wire dia, carbon steel fill, 1 in trim length, 2,0000 rpm maximum, threaded arbor attachment. maximum aggression for high impact action in severe applications. Weiler® 12575 Anderson Narrow Face Wheel Brush, TC Series, 4 in dia Brush, 3/8 in W Face, 0.02 in dia Cable Twist Knot Filament