grab

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grab

Tools a mechanical device for gripping objects, esp the hinged jaws of a mechanical excavator
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

grab

[grab]
(engineering)
An instrument for extricating broken boring tools from a borehole.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.