... is one of the oldest and simplest,yet most useful hand tool for metal finishing,when it is applied with pressure against ... edges such as chaff cutter,blade matchets.Rasp Files:Types:Hand Wood Rasps,Half Round Wood Rasps,Round Wood RaspsApplications:Basically ... files are used for sharpening of agricultural toolsMachinist Files:Type:Hand,Flat,There Square,Square,Half Round Parallel,Half Round Pointed ...