According to my experience the conditioning pads are an excellent addition to my arsenal of power tool parts. They are effective in polishing and conditioning metal surfaces, and their durability is impressive. The abrasive grit is uniform, AND they offer a smooth finish that is unparalleled. The pads come in a set of various grits, which gives me the flexibility to work on both rough and smooth surfaces. As for the cons, i found that they clog up quickly, but that's not a deal-breaker. I would See full review