Allen wrench

US /ˈæl.ən ˌrentʃ/
UK /ˈæl.ən ˌrentʃ/
"Allen wrench" picture
1.

chave Allen, chave hexagonal

a type of wrench used to turn bolts and screws with hexagonal sockets, also known as a hex key

:
He used an Allen wrench to assemble the furniture.
Ele usou uma chave Allen para montar os móveis.
Do you have a small Allen wrench for this screw?
Você tem uma chave Allen pequena para este parafuso?