HEX DUMBBELLS are the kind where the bell ends are shaped like hexagons. Though less common than their round counterparts, they offer some unique advantages and, we think, may be the better choice for ...

Hex wrenches, also known as Allen keys, are the tools you use to screw and unscrew fasteners that have a hexagonal recess (as opposed to a Phillips or flathead recess). Hex screws are commonly used on ...