PurposeUSED TO MEASURE ANGULAR MOVEMENT OF CONTROL COLUMN, CONTROL WHEELS, AND VARIOUS CONTROLS DURING INSTALLATION. USED IN CONJUNCTION WITH MIT65B00115-1, MIT69B81601-1, MIT65B0985-9, MIT65B80326-6 & 3MIT65B80307-1Airplane707, 727, 737, 747, 757, 767, 777-200, 777-200ER, 777-200LR, 777-300, 777-300ER, 777-8, 777-9, 777FUsage CodeMAINTENANCE 