drill drift

drill drift

[′dril ‚drift]
(engineering)
A steel wedge used to remove tapered shank tools from spindles, sockets, and sleeves.
References in periodicals archive ?
Tenders are invited for Quotations In E-Mode Are Invited For Supply Of Drill Drift At Beml, Mysore Complex
Other mining method names are merely variations or closer definition of others (Sublevel Stoping is typically Blasthole carried out with more than one drill drift per level interval and Sublevel Retreat simply defines the direction of the mining).
This will allow each subsequent stope, downwards, to have its drill drift developed in the bottom of the fill in the stope above.
Remote or tele-operated equipment will be used for all drill drift and draw-point development, and any other mining work in ore.