This Turk Head Wire Brush was created specifically for use with bending shafts because of its larger heads. It is constructed with a diameter that is just a little bit bigger than the tube's bore, and when it is routed in, the result is a highly polished, non-scratched surface. Cleaning smoke from smoky tubes and getting rid of light scale buildup on boilers and heat exchangers are two common uses for our Turk Head Wire Brush.