8 Pcs 4"Nylon Fiber Flap Disc Polishing Grinding Wheel Set, Scouring pad Buffing Wheel for Angle Grinder, Abrasive Sanding Wheels, Nylon Polishing Disc Kit (120/180/240/320 Grit)

Good for small scratches in aluminum

it does not last long, it wares out far too fast.the center hole is larger than the angle's grinder axle, so it takes some care to center it properly.

The steel was prepped with a 3M brown course disc then the Rustark disc The first green disc seamed to rub of on my cold rolled sheet steel not polishing or removing any steel only . I will have to find time to test this product later. The disc look well built and did not fly apart when starting up the grinder. Certainly not impressed with the initial use though.

These were a waste of my time and money. The first time I used one everything was fine until I rolled over an edge to smooth it out. This was not a sharp edge but a rounded over one that I was working the scratches out of. The wheel basically flew apart under almost no downward load. I tried another one with the same result. I purchased a higher grit set at the same time I bought these. They were just as bad. I have other wheels like this from brand names and they hold up just fine. The construction on these appear to be very poor.