According to the shape of the cutter face, the form of the file pattern and the purpose of the file, the cutter can be divided into the following types.

1. According to the shape of the cutter surface, it can be divided into flat file, square file, triangular file, semi-circular file, round file, diamond file and cutter file.

2. According to the file style, files can be divided into single file and double file.

3. According to the purpose of the file, it can be divided into: ordinary locksmith file, wood file, plastic file, saw file and special file.