It’s inevitable to run across a spot where you need to use a wrench but the space is just too confined to fit a regular combination wrench. Half-length or stubby versions work well in these situations. They’re also useful for quicker fastener movement once it’s been loosened. Swinging a short wrench is quicker than moving a full-length one. As an alternative, I’ve cut up and bent cheap wrenches as needed to get in nooks or crannies to access fasteners.