Tractor drill | Article about tractor drill by The Free Dictionary
tractor drill[′trak·tər ¦dril]
A drill having a crawler mounting to support the feed-guide bar on an extendable arm.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive
Until the 1940s, tractor drills
could be equipped with optional seats and horse hitches, while many of the hand-lift horse versions could be ordered with tractor hitches.