Which of the following file types has a relatively more material removal rate among them?

Explanation:

Filing:

• Filing is a method for removing excess material from a workpiece by using a file that acts as a cutting tool.
• Files are specified according to their length, grade, cut, and shape.
• File grades are determined by the spacing of the teeth.

Rough file:

• A rough file is used for removing rapidly a larger quantity of metal.
• It is mostly used for trimming the rough edges of soft metal castings.

Bastard file:

• A bastard file is used in cases where there is a heavy reduction of material.
• Bastard file has a relatively more material removal rate among them.

Second cut file:

• A second cut file is used to give a good finish to metals.
• It is excellent to file hard metals.
• It is useful for bringing the jobs close to the finishing size.

Smooth file:

• A smooth file is used to remove a small quantity of material and to give a good finish.

Dead smooth file:

• A dead smooth file is used to bring the material to an accurate size with a high degree of finish.