This 0.010" Brass / 0.018" Nylon Bristle Parts Cleaning Small Flow-Thru Brush has micro-sized Nylon tubes mixed with brass for all-purpose cleaning. This handy brush is used to remove light-to-medium corrosion or dirt from soft metals such as gold, brass and aluminum. Will not damage most metallic finishes. Stainless steel handle easily connects to a standard parts wash hose. This brush has 1/2" trim, handle length of 4-1/2" x 3/8" diameter. Brush face 1/2" wide.