Filing Operations

Polishing Operations

Draw filing produces a finer surface finish and usually a flatter surface than cross-filing. Small parts, as shown in figure 1-38C, are best held in a vise. Hold the file as shown in the figure; notice that the arrow indicates that the cutting stroke is away from you when the handle of the file is held in the right hand. If the handle is held in the left hand, the cutting stroke will be toward you. Lift the file away from the surface of the work on the return stroke. When draw filing will no longer improve the surface texture, wrap a piece of abrasive cloth around the file and polish the surface as shown in figure 1-39A.

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January 18, 2017