valve extender spanner / wrench (e.g. for road bikes)

Ever lost the tool for mounting your valve extensions? Print this!

Print it with a very high infill as it strengthens the structure!
(printed mine with 0.95 infill; 0.15 layer; ABS, 243/100°C)

http://www.slowtwitch.com/Tech/Valve_Extender_How-To_3007.html