"GAGE,FRONT TURBINE CASE USED TO MEASURE THE TURBINE CASE AFTER MACHINING BY CONTACTING THE INNER CASE WALLS AT A 25.108 TO 25.104 IN DIA;CONSISTS OF A DIAL INDICATOR,A PARALLEL TYPE BAR,POSITIONING POSTS,AND AN ADJUSTABLE LOCKING DETAIL HAVING A SLIDING CONTACT LEG;3.5 IN DIA FACE;GREEN TINT,0.0001 IN GRADS,AND 0.008 IN RANGE PER REVOLUTION"