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 ...

For example, while using an elastic band and screwdriver is one of the easiest ways to remove a stripped screw, trying to drive a hex screw into place with this method could cause the tool to slip ...

Interestingly, the ridges on a standard screwdriver handle design make it possible for the tool to fit inside the hex socket of a torque or ratchet wrench.

Halfords set is the only one here to include full-size hex keys with ball ends to allow you to work at an angle, rather than bits. You get holders for bits and keys, but no case. The essentials ...