Is the wire wheel still usable if it is rusted?

Yes.

First of all, we need to understand what a wire wheel is.

A wire wheel is a tool used for grinding, polishing, and cleaning metal and non-metal surfaces, and can be used to remove rust, oxides, and scratches. 

Therefore, the main function of the wire wheel is to clean the surface rather than directly process it. If the filament surface of the wire wheel is rusted, it will not affect its use.

Of course, before use, we need to do a simple treatment of the wire wheel. 

First, clean any rust from the surface with sandpaper or a metal brush. 

Then, spray a cleaning agent or lubricant on the wire wheel, which can help the wire wheel to use more smoothly and last longer.

In general, the fact that a wire wheel is rusted does not mean that it cannot continue to be used. 

We can extend its service life through simple handling and better maintenance, thereby reducing waste.