Removing brushed on RUST-OLEUM from axle housing?

The harbor freight in our area carries multiple drill attachments that are very quick and good at removing any finish from any surface. They also have twisted wire wheels that are used in their 4" grinder they sell. Pop the grinder off and spin the wire unit on. High speed and very able to get it off there. Wear safety glasses. All told you could get it for under 15 bucks and have a grinder, wire wheel and corded tool.