1/2" or 3/8"
with a large torque adjustment range
TÜV certificated
You will need one when you work on your rear wheel, oil filling screw, sump drain plug, handlebar and so on.
Inside the grips of this multitool are many useful tools...
You will need a special small and long wrench socket size...
High-quality Allen keys made of chrome-vanadium-steel are...