"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Hex wrenches, also known as Allen keys, are the tools you use to screw and unscrew fasteners that have a ...

Allen wrenches are undeniably useful, but they can also cause headaches. They’re slender, which doesn’t leave a lot of room for easy-to-read size markings, and they’re easy to drop, particularly when ...

“These sets solved every problem I’ve been having with Allen wrenches.” The Craftsman Hex Key Set will put all the Allen wrenches you need into the palm of your hand, and for a limited time, you can ...

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 ...

I must be the only motorcycle mechanic in the world without a “T” handle Allen wrench set, so I decided it was time to join the club. I’ve been making do with a collection of short-, medium- and ...

The Allen key turns 115 this year. It’s strange to believe that in all that time, no one has come up with an adjustable version, but apparently true. Luckily [Chronova Engineering] has taken up the ...