Allen wrench /ˈælən rentʃ/ BrE AmE noun [countable] American English
[ Date: 1900-2000 ; Origin: Allen Manufacturing Company of Hartford, Connecticut ]
a tool used to turn an Allen screw SYN Allen key British English
Allen wrench /ˈælən rentʃ/ BrE AmE noun [countable] American English
[ Date: 1900-2000 ; Origin: Allen Manufacturing Company of Hartford, Connecticut ]
a tool used to turn an Allen screw SYN Allen key British English
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012