How To Use a File

Basic method

Rough machining and filing ( rough file ): when the machining allowance is greater than 0.5 mm, 300 mm and 350 mm thick and medium tooth files are generally selected for large cutting amount machining to remove with a larger part of the workpiece allowance.

Fine machining and filing ( fine file ): when the machining allowance is between 0.5 mm and 0.1 mm, 250 mm and 300 mm fine tooth files are generally used for small cutting amount machining to approach the required size of the workpiece.

Finishing filing ( finishing filing ): when the machining allowance is less than 0.1 mm, 200 mm and 250 mm fine tooth files, double fine tooth files and shaping files are generally selected to carry out finishing processing on the workpiece so as to reach the required size of the workpiece.

Full filing: when the file is pushed forward, its stroke length is basically close to the of the file surface length It is generally used for processing with rough files and fine files.

Short filing: when the file is pushed forward, its stroke length is only 1 / 2 ~ 1 / 4. of the file surface length generally used for finishing.

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