I wasn't very pleased with this nail file set. I thought the metal file was too fine to file off the amount of nail I wanted. It would have been nicer to have a much coarser metal file that could nearly replace the need to clip my nails. I would say that the coarse side file is closely equal to the metal file. This kit is only good for very fine details. I would recommend to get this kit along with another rougher diamond file because they are not coarse enough for your first stage of filing.
The files are good for fine details only so if that's what your looking for go ahead and get it!