Extensive range of brushes for use almost everywhere whether in the workshop plumbing car repairs metal work and many more with this range you can quickly and easily clean holes threads tubes etc in various materials such as steel stainless steel non ferrous metals plastics and many others the set consists of 18 round brushes 6 each in stainless steel plastic and brass sizes 9 11 13 15 17 19 mm with 14 hexagonal shank alongside the brushes the set also includes a scre