CV880,The L-1011 wing joint holes were drilled using "spacematic" automatic drills. These drills controlled the speed and feed of the drilled hole to insure the they had the proper fit for for the Hi-Tigue fasteners. "Spacematic" drills were state of art in 1970. The only way to see these drills in action was from inside the cabin where you could see the upper surface holes being drilled or to crawl under the wing mate jig to see the lower surface holes being drilled. The only electric drills allowed on the production floor were those used by the facilities maintenance crew.