Since I have not purchased it, I think that there is a problem in the appropriateness of the evaluation because the number of uses is small, but I will evaluate the result as heavy, length, finish condition as highest. Even before this product, we used a diamond file made by another company, but we finished it because it was weak in diamond powder adhesion and ended in a short period of use. I pray that this product will not be like that.
I bought it as a blade sharpening of a planted clipper, but it could not be polished smoothly like an ironwork file. Even fine details are quite rough so it may not be suitable for sharpener. Extremely fine oil grinding wheels are required.