The story
Allen + key, from the name of the Allen Manufacturing Company.
Etymology from Wiktionary, CC BY-SA 4.0.
Allen key
Today it means: Synonym of hex head wrench. Full definition →
Today it means: Synonym of hex head wrench. Full definition →
Allen + key, from the name of the Allen Manufacturing Company.
Etymology from Wiktionary, CC BY-SA 4.0.