The 6 piece Vaunt damaged bolt remover is ideal for removing nuts & bolts that are rounded off, been painted over or rusted. The removers come in sizes 10 - 14mm and come with an interchangeable 1/4"" hex shaft 1x 10mm Bolt Remover 1x 11mm Bolt Remover 1x 12mm Bolt Remover 1x 13mm Bolt Remover 1x 14mm Bolt Remover 1x ArborRemoves rusted, painted over and rounded nuts and boltsCan be used on rusted, painted over and rounded nuts and boltsSupplied in a case for storing away when not in useGreat addition to the tool box