bastard file

American  

noun

1. a file of the commercial grade of coarseness between coarse and second-cut.

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Example Sentences

The time required to sharpen a worn-out 14-inch bastard file is about four minutes, or proportionately less if sharpened before being entirely worn out.

From Modern Machine-Shop Practice, Volumes I and II by Rose, Joshua

For cutting steel that contains hard spots or places, a second-cut file is more effective than a rough or bastard file.

From Modern Machine-Shop Practice, Volumes I and II by Rose, Joshua

The essential difference between the bastard file shown in Fig.

From Modern Machine-Shop Practice, Volumes I and II by Rose, Joshua