Wright Tool Torque Multiplier 1/2" Sq F - 3/4" Sq M Output Capacity 1200 ft lbs

The Wright Tool 9S391 torque multiplier delivers 1,200 ft-lbs of output capacity with a 4:1 multiplication ratio. This heavy-duty tool features a 1/2" square female input that accepts standard torque wrenches, converting to a 3/4" square male output for high-torque applications. The needle bearing design provides high efficiency while keeping input torque requirements low, making it ideal for heavy equipment assembly, pipeline work, and structural bolting.

Built with precision needle bearings for smooth operation and ±5% accuracy right out of the box. The input torque holding ratchet keeps the multiplier stable during operation, preventing unwanted rotation. Sharable output squares include built-in protection that shears at 3-10% overload to prevent tool damage. A replacement drive comes included and installs easily when needed. Made in USA at Wright Tool's Van Wert, Ohio facility since 1914.

Pipeline contractors, structural ironworkers, and heavy equipment mechanics rely on this multiplier for jobs requiring precise high-torque applications. Perfect for flange bolts, tower bolts, and other critical connections where consistent torque values matter. The compact 19.6" length fits in tight spaces while the 13-pound weight stays manageable for field work.