An Allen wrench is a surprisingly handy tool to have around. It's amazing what Allen tools come in for and as they're largely inexpensive, they're a worthy buy for the tool bag or home improvement enthusiast. General sold as a mini tool set, they're available in a range of standard and metric sizes, usually come packed in their own cases and are always manufactured out of heavy grade steel.
Allen wrenches are small, lightweight, unobtrusive tools and yet most will find that they're face with needing one more and more. Bike repairs, furniture assembly, some plumbing tasks and more can all end up requiring the use of an Allen key.
The five best Allen wrench sets are featured below - best sellers, the highest quality and the best rated tools in their category.