ATD Tools 8320 20 pc. Twisted Wire Tube Brush Set

Perfect for cleaning internal surfaces such as threaded holes or tubes.For use manually or with power drill/driver.Includes (6) brush sizes each in stainless steel, brass,, and nylon bristles for different jobs.All brushes have ¼? hex shaped quick disconnect shanks for easy and quick changes.Set includes:(1) 1/4" quick-disconnect soft grip manual driver handle(1) ¼? quick-disconnect 6? extension adapter for manual driver or power drill/driver.(6) Stainless steel bristle twisted wire tube brushes ¼?, 3/8", ½?, 5/8", ¾?, & 1? diameters(6) Brass bristle twisted wire tube brushes ¼?, 3/8", ½?, 5/8", ¾?, & 1? diameters.(6) Nylon bristle twisted wire tube brushes 1/4", 3/8", ½?, 5/8", ¾?, & 1? diameter.Set Uses:Stainless Steel Brushes: Stiff and aggressive- use in tough spots for heavy-duty cleaning.Brass Brushes: Less abrasive- will not scratch harder metalsNylon Brushes: Perfect for light-duty cleaning.