We may receive a commission on purchases made from links. The Allen wrench, also known as a hex key, is a L-shaped hand tool with hexagonal (six-sided) ends. It all started with a Connecticut ...

The Mulwark 17-Piece Folding Allen Wrench Set is the newest tool you should be adding to your kit. Right now, Amazon is offering the two piece set for just $16, saving you 44%. With over 3,400 ...