Torque Multiplier, Max. Rated Input 200 ft-lb, Max. Rated Output 1,200 ft-lb/ OVERALL LENGTH: 20.000 INCHES NOMINAL OVERALL HEIGHT: 4.062 INCHES NOMINAL TORQUE CAPACITY: 1200.0 FOOT-POUNDS MAXIMUM DRIVE SURFACE SIZE: 0.500 INCHES NOMINAL FIRST END DRIVE SURFACE SIZE: 0.750 INCHES NOMINAL SECOND END DRIVE END SHAPE: SQUARE FIRST END INTERNAL DRIVE END SHAPE: SQUARE SECOND END EXTERNAL GEAR RATIO: 6.33 TO 1 SPECIAL FEATURES: SINGLE STAGE PLANETARY GEAR SYSTEM; TUBULAR REACTION BAR MATERIAL: STEEL OVERALL SURFACE TREATMENT: CHROMIUM OVERALL STYLE DESIGNATOR: 139 GEARED