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pilot hole[′pī·lət ‚hōl]
In metal-forming operations, a prepunched hole in a metal strip into which the pilot component of the die enters in order to assure precise registration of the strip at each work station.
A small hole drilled ahead of a larger borehole.
A hole drilled in a piece of wood to serve as a guide for a nail or a screw or for drilling a larger hole.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
A hole which serves as a guide for a nail or screw, or for drilling a larger-size hole.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.