I used this to polish a stainless steel pan. This isn't the first time I've done this and it always works. The first thing that happened was the shape of the cone, which flattened into a disc. Instantly. Then the wires started flying off. I checked the speed of my Dremel tool and it was low enough that none of this should have happened. I didn't use it for more than a minute or two and it wore out completely. Sent back on the day of receipt.