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 ...

If you’ve assembled IKEA furniture, you’ve used an Allen wrench. These slim, L-shaped contraptions are often the only tool included in the packaging, even when you’ll need others to finish the job.

Autoblog aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission. Allen wrenches are undeniably useful, but they can also cause ...