I recently bought a mini-tool at my LBS. I didn't really need it, but it was on clearance. The price was too good to pass up. It includes 2mm and 2.5 mm allen wrenches. Now I have those wrenches in my home tool kit. They see only rare use. I can't quite fathom out why I would need them on a take-along mini-tool. What would I use them for at the side of the road or the trail?