"ROUGHING TYPE REAMER; TOOL TO BE USED WITH RIGHT ANGLE QUACKENBUSH POWER UNIT; MATERIAL TO BE MACHINED IS TITANIUM; USED TO REPAIR 68A110002 WING TO FUSELAGE ATTACH LUGS, WITH PROVISIONS TO BORE AND REAM FINISHED SIZE HOLES IN WING SPAR LUGS AND LUG BUSHINGS AFTER INSTALLATION"