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Hex wrenches, also known as Allen keys, are the tools you use to screw and unscrew fasteners that have a hexagonal recess (as opposed to a Phillips or flathead recess). Hex screws are commonly used on ...

View post: Which EV Has a Better Standard Feature Set, the Hyundai Ioniq 9 Calligraphy Design or the BMW iX xDrive60? The Sedy 41-Piece Hex Key Allen Wrench Set is on sale for $18, which is $12 off ...

At first glance the Allen wrench doesn’t seem to be much of a tool. It’s little more than a small, L-shaped piece of metal. But don’t be fooled by its humble appearance, the Allen wrench is an ...