What he said. Don't need them very often but they are damn handy when you do. I seem to use them quite a bit for torquing fasteners that I can't get a torque wrench on directly.I have 3/8" drive SAE & Metric in standard and flare patterns. For the most part, they live a quiet, undisturbed existence in the back of the drawer. When needed, they are invaluable. Others may argue about heating and bending a "junker wrench" to the needed configuration, but having the right tool for the job saves a ton of time.
I've never needed nor used one until last month when I noticed that the nut holding the rear footboard of my Heritage Classic was a bit loose. I didn't have a crowsfoot so I made one.

...but I’ve never even touched them.
3/8 and 1/2 drive, no 1/4.
I use either about as often. Lots of times it's for hydraulic lines / fittings / cartridge valves jammed too close together to get any other way. Just used one yesterday for exactly that scenario to replace a cartridge.

Beginning DIYer working on a 96 civic and looks like I can use a 3/8 drive 10mm crows foot, to get to PS return hose clamp. Reading this thread, it appears crows feet aren't used often but when needed, are invaluable. That said, would you get sizes, as needed or pick up a set(s)? What else to consider...Flare, flex, etc?
