Diamond mobile files are used without a handle due to their forged shank. Drive types:. - Manual use. Applications:. - Leveling.- Deburring.- Surface processing.- Edge processing.- Edge processing (chamfering, rounding).- Removing oxide layers.- Finishing. Material:. - Nickel or titanium based superalloys.- Ferrite (magnetic material).- Glass.- Graphite and electrocarbon.- Tungsten carbide.- Case hardened steels.- Steel materials with hardness above 54 HRC.- Tool steels.- Abrasive materials.- Technical ceramics.- Ferrite (magnetic material).- Glass.- Graphite and electrocarbon.- Tungsten carbide.- Case hardened steels.- Steel materials with hardness above 54 HRC.- Tool steels.- Abrasive materials.- Technical ceramics.