NASA NTRS · 19870000132
Duplex Wrench
Abstract
Special tool enables one worker to do two-worker job. Wrench holds two nuts in place while third nut, coaxial with others, turned. Developed for tightening delicate couplings on gas-supply panel. Single operator restrains coupling pressure cap and connector body nut with one hand. Other hand free to tighten coupling nut with torque wrench.
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Canada, C. N.. 1987-03-01. Duplex Wrench. https://ntrs.nasa.gov/citations/19870000132
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