Puts the 'abrasive' back in abrasive. Given the appearance of this item, I thought I could use it to knock excess grout out from rough-hewn tile. Silly me. This item could be retitled "tile shaper". Be aware of its destructive power, let's say. I probably shouldn't downrate it but I am at a loss to think of household purposes for it. It scores up concrete, eats travertine for lunch, and makes a general mockery of whatever it comes in contact with. It would probably be perfect for cleaning accumulated gunk off a lawnmower blade. It would also do nicely at smoothing off your concrete porch if you used a chisel to knock a glob of spilled cement off of it, but had some bits left. Just stay away from the tile.