At first look, you might think this is a bottle opener, well you are right but Budnitz Titanium Beer Wrench Titanium is also a wrench on the other side. You can mount this tool using two titanium thumb-screws and attach it securely on your bike. During emergency when you need to remove a wheel on the road, this 15mm spanner becomes really handy. This wrench removes rear axle bolts, Alfine internal hub bolts and Pitlock keys, and don’t forget, it opens a bottle of beer when you need one during your ride, what a great emergency tool

From : Budnitz Bicycles