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Option 1 : File
Explanation:
- The filling is a method for removing excess material from a workpiece by using a file that acts as a cutting tool.
- File grades are determined by the spacing of the teeth.
- It comes under a multi-point cutting tool because at a time multiple teeth removes the material.
- There are the following types of files used:
- A bastard file
- A rough file
- A second cut file
- A smooth file
- A dead smooth file
- A triangular file
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