Review on AUSTOR Pieces Abrasive Buffing Polishing by Brian Delgado

Bought to finish polishing an aluminum water pump and intake. They work well but wear out quicker than their Dremel counterparts. I've found that running my air grinder at around half throttle and relatively low pressure helps reduce wear rates without sacrificing performance. As others have suggested, it would be nice if the bags (yes they were in plastic bags) were marked with an appropriate grit so I don't have to keep going back to the order details to figure out which one I want to use next. . I've also found that the metal ring in the center of the buff can scratch the aluminum fairly easily if you're not careful and have a Dremel-like quick release that slows things down. Overall they are good value for money as they cost around 10% of the cost of a Dremel product at local hardware stores.