YAKAMOZ 10Pcs Titanium Diamond File Set Fine Round Needle Files Triangular Square Flat Riffler File Kit for Metal Wood Stone Glass Jewelry Carving Polishing DIY Tools - 5x180mm

Used these to sand/file rusted paint chip areas on my car before I using touch up paint. Just what I needed.

I'm impressed with how strong these are. They sand down epoxy clay and metal nicely, are easy to hold, and have lots of different shapes which is helpful for many differently shaped objects. I think there is a good choice of different pieces for the price, though I wish I could get more in different grits.

I'm using this to treat the edge of newly cut porcelain tile. They all work GREAT for this!!

To large for small work. Coating already flaking off after one use

Description states fine, but in reality a coarse grit. Very good price though.