noun Date: circa 1875 a wrench for gripping and turning a cylindrical object (as a pipe) usually by use of two serrated jaws so designed as to grip the pipe when turning in one direction only
PIPE WRENCH
Meaning of PIPE WRENCH in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012