double-cut file[¦dəb·əl ¦kət ′fīl]
A file covered with two series of parallel ridges crossing at angles to each other.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
A file having two sets of cutting ridges, each set crossing the other; the ridges are diagonal with respect to the center line of the file.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.