Effective parts finishing

摘要

Hand filing, one of the oldest met-Lalworking methods, requires a high degree of manual skill. Filing is an art that can be learned only by long and patient practice. It takes longer to teach a person to be a good filer than it does to effectively train someone to run a lathe, mill or planer. Metalworking professionals recognize a craftsman by his ability to apply a file correctly and efficiently. The touch of a file in the proper place can make all the difference in fitting a critical joint. The skill, or "feel," that the person with a file acquires from long experience comes from conforming to proper procedures.