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 ...

Even if you’ve never bought an Allen wrench, chances are you probably have one or two lying around the house. These are the small L-shaped hand tools that come free with most flat-pack furniture you ...

Because of its small size, high torque strength, and recessed installation, the hex socket screw is a great alternative to regular bolts. The main tool used to tighten or loosen hex socket screws is ...

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 inventor ...

A good collection of sockets makes it easy to loosen or tighten nuts and bolts of any size; a great collection brings the ...

As the global industrial landscape moves deeper into 2026, the demand for high-precision components has reached an unprecedented peak. At the forefront of this industrial surge is Handan Yongnian ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Wrenches are among the most ubiquitous and invaluable hand tools. They fit firmly around nuts and bolts, ...

If you're like us, you have a toolbox drawer full of loose hex keys that have no rhyme or reason. Over the years, you've collected hex keys from random tool kits at Christmas and just thrown them into ...