These fasteners are easily recognized by the six-sided socket in the screw head, which gives a clue to the tool’s alternate name: “hex key.” Allen wrenches, or hex keys, come in a variety of ...
If you're working with hex fasteners, whether that's furniture assembly or bicycle repair, you're going to need an Allen ...
These tools don’t have as long a history as hammers and saws, but ever since their use became mainstream in the 1800s, wrenches have become indispensable to carpenters, mechanics, electricians ...