"USED AFTER CUTTING THE NOZZLE FOR METERING SET REMOVAL,FOR FACING OFF THE TIP OF THE SUPPORT AND REMOVAL OF WELD DROP THRU; MEASURES 2.5 IN. LONG,.5 IN. DIA.,MADE OF STEEL HARDENED WITH BLACK OXIDE FINISH,EACH END OF GAGE IS MACHINED TO SPECIFIED DIMENSION TO BE USED AS THE GAGE; U/O F108 ENGINE"