Brass pencil brush 4.5mm (2.35mm shank) for use with all micro motors
Steel pencil brush 4.5mm (2.35mm shank) for use with all micro motors
White bristle pencil brush (stiff) 4.5mm (2.35mm shank) for use with all micro motors
Black bristle pencil brush (med) 4.5mm (2.35mm shank) for use with all micro motors