I've drillium'd adjustable wrenches to get the weight down for touring. Really an essential item, I carry one anyway, regardless of whether I'm on a bike with nutted axles or not. Put it in my handlebar bag right next to the road flare and cliff bars.
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Owner & co-founder, Cycles René Hubris. Unfortunately attaching questionable braze-ons to perfectly good frames since about 2015. With style.