Bent rod on modified basin wrench holds wrench jaw against valve stem. Rod swivels to accomodate 180 degrees rotation of wrench jaw. Valves 5 feet (1.5 meters) underground can be operated with tool.
Deep-Access Valve Wrench
NASA Tech Briefs ; 7 , 1
1983-03-01
Miscellaneous
No indication
English
NTRS | 1987
|SAE Technical Papers | 2021