"MATERIAL TO BE MACHINED IS TITANIUM; TOOL TO BE USED WITH RIGHT ANGLE QUACKENBUSH POWER UNIT; 10 1/4 IN. LENGTH; CLAMP TYPE CARBIDE INSERTS ARE 3/8 IN. INNER CIRCLE DIAMETER BY 1/8 IN. THICK; TOOL FUNCTION: 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; ROUGHING BORE TYPE"