Diamond File

The diamond chips used for these budget priced diamond files are polycrystaline. Polycrstaline diamonds are much cheaper and much less durable than monocrystaline diamonds. They are useful for many different types of metal work. Keeping the surface of the diamond files wet (water or oil) will also prolong their useful life! Work with low pressure only! These diamond files come in medium grit however the maker does not specify the grit size. The Diamond File is available in different shapes such as round, half round, triangular, flat & square.