File card brushes can be used on wood and metal-working files.
A file card brush and a wire brush look similar, with both types of brushes being used to clean and remove dirt.
A file card brush contains more wire bristles that are closer together.
The bristles on a wire brush are softer and often fewer than on a file card. That is how you tell the difference between a file card brush and a wire brush
Did you know that wire brushes are used to clean the teeth of larger animals such as crocodiles?