wagon drill[′wag·ən ‚dril]
A vertically mounted, pneumatic, percussive-type rock drill supported on a three- or four-wheeled wagon.
A wheel-mounted diamond drill machine.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
An assembly for positioning and handling a pneumatic drill; consists of a mast with a carrier for the drill and a wheeled carriage for moving and positioning the unit.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.