Bicycle-specific tool giant, Park Tool sends us their Sliding Hex Wrenches with some great features for review, and they are ...

An Allen wrench, AKA an Allen key or hex key, is a small hand tool used to fasten screws or bolts with a hexagonal socket. Either end usually works, although some sets only have one end.

We've all been there. You finally muster up the energy to fix something. You have your screwdriver with you, only to find a ...