From type to tolerances, our guide to the often overlooked tool Excluding your mind, hands and perhaps bottle opener, nothing in the bicycle workshop is likely to get more use than Allen keys (AKA hex ...

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 are ...

You could amass an irregular collection of Allen wrenches by saving the ones that come with build-it-yourself furniture, but the way to actually have every hex key you need on hand is to get a nice, ...