This did just fine. I will say I don't like the feel ...
They are nail buffers.  They buff your nails.  Not much more to it than that.  This did just fine.  I will say I don't like the feel of the glass file that came with it.  It feels awful like nails on a chalkboard, but that entirely my weirdness and not a reflect of the product which seemed fine.
Rating: 4 stars