Diamond files and sheets are used when conventional files fail due to the hardness of the workpiece material. Diamond files and sheets are also used for processing hardened steel. Using these products does not generate much heat, which prevents chemical wear. This allows for a longer service life for the high hardness diamond grain. Diamond machinist files are used in many industries, such as the manufacturing of large components made of hard materials. These come with ergonomic file handles. Diamond machinist files come with ergonomic file handles.