Correct option is C
Cross filing is the process of
filing from one end to the other end in a straight stroke, generally at a
diagonal angle to the length of the workpiece. In cross filing, the file is moved across the surface in long strokes, covering the entire length to remove excess material quickly and create a relatively flat surface. It is the most commonly used method for rough filing operations.
Cross Filing Characteristics:
· File is held at an angle to the length of the workpiece (typically 30–45°).
· Used for general shaping and flattening of surfaces.
· Removes material quickly due to the long and full strokes.
Applications: Cross filing is used in initial stages of filing to shape the workpiece and remove larger amounts of material.
Technique:
Pressure is applied during the forward stroke, and the file is lifted slightly during the return stroke to avoid dulling the file.
Draw filing
This method is used to remove file marks and for finishing operations.
Here, the file is griped as close to the work as possible between two hands.
In this method, a fine cut file with a flat face should be used.
