This design of brush is used mainly for light brushing and polishing of tube surfaces in all types of tubular plant and is particularly useful for CURVED tubes. Two types are available, i,e. LIGHT pattern filled with 32/33g or 30g FINE wire and HEAVY pattern (in larger hubs containing more wire) filled with 27g crimped wire. Made in all sizes between 12mm and 76mm diameter in the LIGHT pattern and 38mm to 102mm diameter in the HEAVY pattern.