The Hybrid Athletics 360 Barbell Brush has been the best way to maintain and clean up large rust areas. With a flexible wrap-around grip, you can get deep into the knurl to clear out whatever may be hiding in there. For bare steel bars, you’ll want to use the option with steel bristles, and for those with other coatings, the nylon bristles will be a bit more gentle.
You can actually use the promo code GGE10 to save 10%.
