Charlie says... "Surly make these from the metal left over from their chainrings, which is nice to know"
Bottle Opener & Pocket Tool.
Surly's singulator tool is crafted from stainless-steel, then polished to a high luster.
It combines an 18mm wrench on one end for adjusting the tension on a singulator, with a leverage-enhanced bottle opener on the other.
Compact as to fit in a small tool kit, pocket or key ring.