You have your screwdriver with you, only to find a hexagonal socket waiting for you on the screw that needs tightening. Also ...

An Allen wrench works. If you have a plumbing issue ... That’s a pipe wrench, also known as a Stillson wrench. And while all tools have pushed manufacturing forward, the Stillson stands out ...

Even if you’ve never bought an Allen wrench, chances are you probably have one or two lying around the house. These are the small L-shaped hand tools that come free with most flat-pack furniture ...