"GAGE,ANGLE,BEND; USED TO CHECK FINAL BEND ANGLE,RIGHT AND LEFT,OF THE 9TH STAGE BLADE LOCKS;GAGE IS CLEAR PLASTIC BLOCK W/2 LOCATING PINS WHICH ARE TANGENT TO A CURVED SURFACE;2 DEEP SCRIBED LINES, ONE SLOPING DOWN AT 75 DEGREES AND THE OTHER SLOPING UP AT 75 DEGREES;VARIOUS NUMBERS AND LETTERS INSCRIBED ON SURFACE FOR IDENTIFICATION,POSITIONING,AND USAGE; 4.0 IN. LG BY 3.0 IN. WD BY 0.9 IN. HT 0.3 LB;USED ON 117 ENGINE,SERD 1517"