I bought this to have it incase I needed it, have not used this tool yet. It is really nice build quality and fits nicely in your hand.
A good price and quality spoke wrench tool, however it does not fit Shimano wheels correctly at least for series 10 (nippleas at rims) and 500 (nipples at hub). for the mall side 3.75mm, nipples are larger and for 4.4mm, nipples are small. Probably for another Shimano wheels it fits perfectly.