A hex wrench and an Allex wrench actually refer to the same tool. They are L-shaped hexagonal devices that are often used to drive and fit screws and bolts with a hexagonal socket in the heads.
They aren’t new
Hex keys aren’t really new. In fact, the hexagonal-shaped screw drive has been around since the 1800s. However, it wasn’t until 1910 that they became really functional tools.
In that time, William G. Allen filed a patent for those tools and marketed them as “Allen Safety Set Screw”.
Hex keys or Allen keys come in different sizes. They make gripping bolts and screws easier because they have more pressure points.
Additionally, they also lessen the risk of stripping the screw or bold because of its hex design. This is one good reason why a lot of engineers choose the hex tool instead of Philip’s head screw.
Now, if you are looking for more tools you can use for your DIY projects, you should consider getting a toolbox kit. That way, you’ll have everything you need.