The pieces each have a manufacturer name on the shaft but no mention of the grade / coarseness of each. I cannot distinguish any difference between each piece, They all seem to be of the same grade. I have a very thick toenail and not one of these has been of any value in trying to reduce the thickness so that I can apply treatment to remove underlying fungal infection. I expected at least one would be quite coarse as depicted in photos. Undecided whether to rate good quality - yes or no Delivery was prompt Sorry, but I find they are of no use to me. Not recommended.
Verified purchase: Yes | Condition: New
Brilliant product that works great and at a great price
Verified purchase: Yes | Condition: New
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